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
I'm sorry to say this, but there seems to be a mistake.
对不起，这儿好像有个错。
Books, like friends, should be few and well chosen.
书籍如朋友，应该少而精。
'Hello, little girl,' she said.
“你好，小姑娘，”她说。