Trunk piston
[化] 筒式活塞; 裙式活塞
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
🗣️ 情景例句
I can't make sense of it.
这个我弄不明白。
I used to be a pilot. Now, I'm a parachutist.
我曾经做过飞行员，如今是伞兵了。
The dealer told him that it had just come in, but that he could not be bothered to open it.
古董商告诉他那只货箱刚到不久，但他嫌麻烦不想把它打开。