Talien
大连(=Dalian)
🗣️ 情景例句
Thank you.
谢谢 。
If you're not sure how to do is, ask me.
假如你拿不准怎样做，就来问我好了。
where chance discoveries play a much larger part than they do in physical and mechancal industries.
同物理和机械工业相比，化学工业中偶然发现的机会要多得多。