Metcolising
铸铁喷铝法
🗣️ 情景例句
You'll see a dotted line on the last page.
你会在最后一页上看到一条虚线。
When I had a rest, what were you doing?
当我休息时，你在做什么？
It's nothing serious.You'd better have a good rest.
（病情）不太严重。你最好好好休息一下。