Enteramine
血清素, 5-羟色胺
🗣️ 情景例句
I consider him my best friend.
我将他视为我最好的朋友。
I think you probably know China has adopted a flexible policy in her foreign trade.
我想你也许已经了解到中国在对外贸易中采取了灵活的政策。
I'll give you a call when we are ready to talk about them.
等我们准备好可以谈的时候，我会打电话给你。