Biotest
生物监测
🗣️ 情景例句
at the Museum of Natural History.
在自然历史博物馆。
Do you have some change?
你有零钱吗？
In the last act, a gaoler would always come on to the stage with a letter which he would hand to the prisoner.
在最后一幕中，狱卒手持一封信上场，然后将信交给狱中那位贵族。