Serolysin
血清溶素
🗣️ 情景例句
We're in luck.
我们运气好。
He is distinguished as an economist.
他是一名著名的经济学家。
the young man has a glorious future before him and the old one has a splendid future behind him:
青年人有光辉灿烂的前景，而老年人的辉煌已成为过去。