Area of piston
[机] 活塞面积
🧩 词语组成解析
area
['ɛrɪə]
n. 地区;区域，范围;面积，平地;领域;
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];
piston
['pɪstən]
n. <机>活塞;
🗣️ 情景例句
Hmm. I can't remember.
嗯， 我记不起来了。
Do as most men do and men will speak well of thee.
为众之所为，受众之所夸。
I felt very nervous when I went into his office.
我走进他的办公室，感到非常紧张。