Hydrometers
(hydrometer 的复数) n. 液体比重计\\n[化] 液体比重计
🗣️ 情景例句
Thank you.
谢谢 。
The problem is far from easy.
这问题绝非易事。
The doctor examined the soldier's wound carefully.
大夫仔细检查了战士的伤口。