Train of gearings
[机] 齿轮系
🧩 词语组成解析
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];
🗣️ 情景例句
then I care about us.
那么我便关心我们大家。
You cannot make a silk purse out of a sow's ear.
猪耳朵做不成丝钱包；巧妇难为无米之炊。
We can't sign the contract yet.
我们还不能在契约上签字。