Hselene
安全与健康数据库
🗣️ 情景例句
I have one ten-day tour that is still available. It will depart from New York on Dec. 24.
我们一个10天的旅行团还有空位，12月24号离开纽约。
He went to the post office to mail a letter.
他去了邮局寄信。
but where had it come from?
但它是从哪儿来的呢？