Piston alloy
[机] 活塞用合金
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
alloy
['ælɔɪ]
n. 合金;（合金中的）劣等金属;搀杂品;成色;
v. 合铸，熔合（金属）;铸成合金;在…中搀以杂质，使（金属）减低成色;
al(ad-=to)+loy(to bind)→合金；杂质；贬低；损害
🗣️ 情景例句
Carl, you're sure you've never played?
Carl，你肯定你从来没玩过吗？
It is not polite to eavesdrop on the conversation of other people.
偷听他人说话是很不礼貌的。
Being criticized is awful!
被人批评真是痛苦！