Balancing piston
[化] 平衡活塞
🧩 词语组成解析
[计] 平衡, 均衡, 结算\\n[经] 平衡, 结出余额
piston
['pɪstən]
n. <机>活塞;
🗣️ 情景例句
A watch! I've got just the place for watches! Let's go.
手表！我正好知道有家卖表的。走吧！
The best (greatest) fish keep (swim near) the bottom.
好鱼游水底（指：有价值之物不能轻易得到）。
I turned to look at the children, but there weren't any in sight: they had all run away! The man laughed when he realized what had happened.
我转过头去看那些孩子，但一个也不见，全都跑了！当那个人明白了发生的事情时，笑了起来。