Hselene
安全与健康数据库
🗣️ 情景例句
I'm Elsa Tobin. How do you do?
我叫Elsa Tobin ，你好。
He hasn't done any worthwhile work in five years.
这五年来他没做过一件正经事。
Supper is ready at six.
晚餐六点钟就好了。