Perchlorate
[化] 高氯酸盐\\n[医] 高氯酸盐
🗣️ 情景例句
Good-bye, Richard, and good luck. See you in two weeks.
再见， Richard， 祝你好运。两周后见。
I've got to be going now, Good-bye.
我得走了，再见。
Is this it?
这把是吗？