Tryptic
[生化]胰蛋白酶的
🗣️ 情景例句
Sometimes.
有时候。
A man can die but once.
人生只有一次死。
The wall behind looks a bit grey and dull. What can we do to make it look less ugly?
后面那堵墙看起来有点暗。我们能不能让它漂亮点？