Serolin
血清晶质
🗣️ 情景例句
Do you know how to play charades?
你们会打哑谜吗？
We can't fly our kites any more because the wind has stopped.
由于风静止，所以已经没法放风筝了。
Since then, they have been trying to find out how the fire began.
从那时起，他们一直试图找出起火的原因。