commence

verb

1. 开始发生；开始；着手
   to begin to happen; to begin sth
   1. The meeting is scheduled to commence at noon.
      会议定于午间召开。
   2. The day commenced with a welcome from the principal.
      那天由校长致欢迎词开始。
   3. I will be on leave during the week commencing 15 February.
      我将从2月15日开始一周的休假。
   4. She commenced her medical career in 1956.
      她于1956年开始行医。
   5. We commence building next week.
      我们下周破土动工。

1. V-ERG 开始
   When something commences or you commence it, it begins.
   1. The academic year commences at the beginning of October...
      学年于10月初开始。
   2. They commenced a systematic search...
      他们开始进行彻底搜查。
   3. The hunter knelt beside the animal carcass and commenced to skin it.
      猎人跪在动物尸体旁边，开始剥皮。

Commence, start, and begin all have a similar meaning, although commence is more formal and is not normally used in conversation. The meeting is ready to begin... He tore the list up and started a fresh one. ...an alternative to commencing the process of European integration. Note that begin, start, and commence can all be followed by an -ing form or a noun, but only begin and start can be followed by a 'to' infinitive.
commence, start 和 begin 三个词意思相近，不过 commence 一词更为正式，通常不用于对话中。例如，The meeting is ready to begin (会议可以开始了)，He tore the list up and started a fresh one (他把清单撕碎，然后另列一张)，an alternative to commencing the process of European integration (启动欧洲一体化进程的另一种方式)。注意 begin, start 和 commence 都能后接动词的 -ing 形式或名词，但只有 begin 和 start 才能后接不定式。

1. The academic year commences at the beginning of October
   学年于10月初开始。
2. They commenced a systematic search
   他们开始进行彻底搜查。
3. The hunter knelt beside the animal carcass and commenced to skin it.
   猎人跪在动物尸体旁边，开始剥皮。
4. Tom and his companions commence on their third bottle in an hour.
   汤姆和他的同伴在一个小时内开始喝第三瓶酒了。
5. If everyone has arrived, we may now commence the meeting.
   如果人都到齐了，现在我们可以开始开会。
6. You should commence with this book.
   你该先读这本书。
7. A message flow would then read that message and commence the required processing.
   然后一个消息流读取该消息并开始所需的处理。
8. When you're ready to commence the recording process, the start method is called.
   准备开始录制流程时，将调用start方法。
9. I shall forthwith commence the duties of the high trust to which you have called me.
   现在我就将开始你们召唤我上任的被赋予如此高度信任的职务。
10. I commence a round of visit.
    我开始着手一系列访问。
11. My only regret is that I did not commence it when I was a youth.
    我唯一感到遗憾的是在我年轻的时候没有养成写日记的习惯。
12. Shall we commence the meeting at ten o'clock?
    会议十点开始，好吗？
13. Then he would wait no longer, but flew away, to commence his wooing at once.
    当他从她得不到半个字的回答的时候，就不再愿意问了。他飞走了，并且立刻开始他的求婚活动。
14. Full two-way trade will not commence until 2018.
    全面的双向交易要到2018年才开始。
15. When the construction work is expected to commence and when it will be completed?
    有关兴建工程预计何时动工，及将于何时完成？
16. When you've finished your talking I shall commence!
    等你结束你的谈话，我再开始！
17. The event was about to commence and we could feel the rush of anticipation surrounding us.
    比赛就要开始了，我们都非常兴奋，也能感觉到大家对我们的热切期望。
18. Further negotiations on services and agriculture were to commence in 2000.
    服务业和农业的谈判将于二零零零年再度展开。
19. As you might imagine, once the real changes commence people will be unable to ignore them.
    正如你们可能想像的，一旦真正的改变开始，人们将无法忽视它们。
20. Hogs commence breeding when they are from nine to twelve months old.
    母猪等他们到了九到十二个月大时就开始繁殖。
21. After the course commence, no refund will be entertained.
    若课程已开始，将不受理任何退款。
22. After the start-up time of the dryer, purging of the system may commence.
    过了干燥器的预运行时间，可以执行吹扫。
23. The next stage of work on constitutional development cannot commence without first resolving the issues of legislative process.
    法律程序问题一日不解决，下一步政制发展工作都不能展开。
24. Should we commence the attack?
    我们是否应该开始攻击？
25. Therefore, in the composition teaching, we can commence from the "interest".
    因此，在作文教学中，我们可以从“趣”入手。
26. The cool down and start-up procedure will commence with assistance from appropriate vendor representatives as required.
    冷却和开车程序将根据需要在合适的卖方代表的协助下开始。
27. You will need to muster up the patience to allow healing to commence.
    你将需要积攒起耐心来让治愈开始。
28. Or did the pagans commence war against the christians?
    或者说异教徒开始了对基督徒的战争？
29. Only after this "handshaking" is complete can the exchange of data commence.
    只有经过这样一个“握手”后，数据交换才能开始。

  start begin commence【导航词义：开始】

  start v. 开始

〔辨析〕指动作开始且持续下去，强调开始这一事实。

  begin v. 开始

〔辨析〕最常用词，指为某一过程或进程开个头，常可与 start 换用。

  commence v. 〈正式〉开始，着手

〔辨析〕指开始某种正式行动，常伴有正式程序或一定的仪式，语气庄重。

verb

1. take the first step or steps in carrying out an action
   1. We began working at dawn
   2. Who will start?
   3. Get working as soon as the sun rises!
   4. The first tourists began to arrive in Cambodia
   5. He began early in the day
   6. Let's get down to work now

   Synonym:    get downbegingetstart outstartset aboutset out

2. set in motion, cause to start
   1. The U.S. started a war in the Middle East
   2. The Iraqis began hostilities
   3. begin a new chapter in your life

   Synonym:    beginlead offstart

3. get off the ground
   1. Who started this company?
   2. We embarked on an exciting enterprise
   3. I start my day with a good breakfast
   4. We began the new semester
   5. The afternoon session begins at 4 PM
   6. The blood shed started when the partisans launched a surprise attack

   Synonym:    startstart upembark on