Emydin
龟卵蛋白
🗣️ 情景例句
You did a great job.
做得好。
Why are you standing behind the door?
你为什么站在门后？
Now, this is the chemistry lab. Have you been in this lab before?
好啦，这是化学实验室。你们以前到过这个实验室吗？