Thymin
胸腺激素
🗣️ 情景例句
I didn't have the heart to tell her that she was not chosen.
我没有勇气告诉她说她没有入选。
When you're learning to drive, having a good teacher makes all the difference.
初学驾驶有好的教师指导，差别很大。
I can send one for you to try.
我们可以寄个给你试用。