Diazene
二氮烯
??? 情景例句
He can really slam it down.
他可真能喝。
Can I get a seat for today's 7:00 a.m. train?
我可以買到今天上午7點的火車座位嗎？
It's a pleasure. What time is it by your watch, please?
不客氣。請問，你的表幾點了？