Pistoning
(piston 的现在分词) n. 活塞, 活塞阀键\\n[医] 活塞(如注射器的)
🗣️ 情景例句
Nothing special.
没什么特别的。
Hey, you forgot about me! Don't leave me here!
喂，你把我给忘记了！别把我对丢在这里！
We've seen several members of the family since we arrived my grandfather and my aunt and uncle.
自我们回来以后已经见到了好几个家庭成员祖父、姑姑和叔叔。