Alternet
[计] AlterNet网
🗣️ 情景例句
What's your problem, Mike?
你现在问题在哪 ，Mike？
Are you sure?
你确信吗？
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。