Streptolysin
[机] 链球菌溶血素
🗣️ 情景例句
You're writing a book?
你在写一本书吗?
Perseverance is vital to success.
不屈不挠是成功之本。
Some old people are oppressed by the fear of death.
有些老年人因为怕死而感到烦恼。