Sleeve: The plastic jacket on the shaft of the oar upon which is mounted a button, used to secure the blade to the oarlock. 桨保护套:套在桨上的有固定纽扣的塑料保护衣,用于使桨叶安全地固定在桨架上。
A short light oar used without an oarlock to propel a canoe or small boat. 用来推动轻舟或小船的没有桨架的短小的桨。