Disulformin
雙磺佛民(治腸炎、急性痢疾)
??? 情景例句
The security guard asked the stranger for some I.D.
保安要求陌生人出示身份證。
How long will it take for a letter to get to California?
你把信寄到加州要多長時間？
I can't get to sleep!
我睡不著！