Plasmase
纤维蛋白酶
🗣️ 情景例句
Why shouldn't you run for what, Mom?
为什么， 不该竞选什么， 妈妈？
He reads a book every day.
他每天都读一本书。
It is only 380,000 kilometres away, and it has been visited by man already.
已经有人到过月球旅行了。