Changing of crankcase oil
[建] 换曲轴箱油
🧩 词语组成解析
v. 交换；兑换；改变（change的ing形式）
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
n. 曲轴箱\\n[建] 曲柄箱
oil
[ɔɪl]
n. 油;石油;油画;燃油;
vt. 给…加油;
vi. 化成油;
🗣️ 情景例句
Of course you recognize him.
你当然认得他。
Don't make any mistakes.
别出差错。
It makes no difference that the forgery may have been a very skilful one:
即使伪造得很巧妙，也不能付款，