Piston pin
[化] 活塞销
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
pin
[pin]
n. 钉;别针，扣针，饰针;大头针;没价值的东西;
vt. 压住;（用钉等）钉住，钉住，别住，扣住;用障壁等)围住，关住（俚语）抓住;[军]牵制;
adj. 针的;钉的;销的;大头针的;
🗣️ 情景例句
But I'm sure he has a few bags with him on the train.
不过我相信他在火车上还有几件行李的。
Many hands make a burden lighter.
众擎易举。
We just can't use this one, it won't work.
这种的我们就是不能用，行不通的。