Petrogas
液体丙烷
🗣️ 情景例句
How long does it take you to get through a letter?
你写一封信要花多少时间？
Everything new is fine.
新事物总是美好的。
He saved money for years and in 1958 he bought a small workshop of his own.
他靠多年积蓄，于1958年买下了自己的一个小铺子。