Train of wheels
[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];
n. 旋转；车轮（wheel的复数）
🗣️ 情景例句
The bad news hit everyone hard.
恶耗使每个人都受到了沉重打击。
She has gone to take a look at the art gallery.
她为了参观美术品陈列馆而出去了。
I'd like to give you one of our new catalogs.
我们有新目录想给你