Circular piston
[电] 圆活塞
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
🗣️ 情景例句
It's an album of pictures of the United States:
是关于美国的
You certainly are an interesting person!
你的确是个风趣的人。
She spelled out for me the things that the teachers taught.
教师所教的东西，她都为我拼写出来。