Trimethyl
三甲基色氨酸, 刺桐子氨酸
🗣️ 情景例句
If you roughhouse with a cat, you're going to get scratched.
如果你喜欢和猫嬉戏，可能会被爪子抓伤。
I'm glad to hear about your promotion.
我很高兴得知你升了职。
Yes. He wanted you to ring him.
留了。他要你给他打电话。