Epsilcapramin
[机] β-氨基己酸
🗣️ 情景例句
Then you select the leader.
然后选们选出指挥。
The worker is pounding steel pipes to mend the leakage of water.
管道工为了修缮漏水而敲打着下水道的铁管。
When you have found a building in which to start your school.
你找到开办学校的楼房后