Category of machine
[计] 机器范畴
🧩 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
You guys are like three kids.
你们就像三个孩子。
I'll pick up the tab.
我来付帐。
So it is a comparatively simple step from locating the sea bottom to locating a shoal of fish.
从测定海深到测定鱼群，这一进展比较容易。