Dimethylated
二甲基化的
??? 情景例句
Do you know when the bus for the Summer Palace leave?
你知道到頤和園的車(chē)幾點(diǎn)開(kāi)嗎？
If he doesn't, will you wash the dishes.
如果他不，你會(huì)洗碟子嗎？
Tomorrow never comes.
莫依賴明天。