Cartox
混碳?xì)?環(huán)氧乙烷(10％)二氧化碳(90％)混合劑)
??? 情景例句
Hi, Susan.
嗨， Susan。
How long is the ticket valid?
這車票有效期多久？
I had all the usual symptoms of someone giving up smoking: a bad temper and an enormous appetite.
脾氣暴躁和食欲旺盛。