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
Let's go to the movies.
我们去看电影吧。
He has a pair of shoes.
他有一双鞋。
Congratulations on your good news! You must have done well to have achieved this success.
对你的好消息表示祝贺。你一定是干得很出色才获得这一成功的。