Catecholamin
[化] 儿茶酚胺
🗣️ 情景例句
The book is above me.
这本书我读不懂。
Generally speaking, a contract cannot be changed after it has been signed by both parties.
一般来讲，合同一经双方签订就不得更改。
Thanks.The same to you. Bye.
谢谢。也祝你旅途愉快！