Cationic acid
[化] 阳离子酸
🧩 词语组成解析
[医] 阳离子的, 阴向离子的
🗣️ 情景例句
Our troop was under his command.
我们的部队由他指挥。
I can't seem to get to sleep.
我好象睡不着。
When there is no one in the office, you can leave the answering machine on so that people who call you up can leave a message.
当无人在办公室时，你可以打开留言机，这样打电话给你的人就可以留言了。