adv. (时间、空间)向前面,在前面; 提前; 预先; 提早; 占优势; 领先
Oxford 3000 / Collins.4 / BNC.1504 / COCA.1025
adv.
ADVERB USES 副词用法
In addition to the uses shown below, ahead is used in phrasal verbs such as ‘get ahead’, ‘go ahead’, and ‘press ahead’.
除下列用法外,ahead还可用于get ahead,go ahead,press ahead等短语动词中。
PREPOSITION USES 介词用法
beforehand ahead【导航词义:事先,提前】
beforehand adv. 事先,预先,事前
〔辨析〕指在时间上先于另一事发生或完成,尤用于谈论准备或计划的事情。
ahead adv. 事前,提前
〔辨析〕词义同 beforehand,常可换用;但以 ahead of time/schedule 出现时,则其中的 ahead 不可与 beforehand 换用。
adv
Synonym: in advancebeforehand
Synonym: out frontin the lead
Synonym: forward