Bryta
[醫] 重土, 氧化鋇
??? 情景例句
Good-bye, Richard, and good luck. See you in two weeks.
再見， Richard， 祝你好運。兩周后見。
You messed up!
你搞砸了啦！
What about when we leave?
我們離開實驗室又該做些什么呢？