Lactein
[医] 炼乳, 乳酸菌素
🗣️ 情景例句
He's such a workaholic that he doesn't know how to spend his leisure time.
他是个工作狂，以至于不懂得如何打发他的空闲时间。
Sooner or later,the truth comes to light.
真相迟早会大白。
Yes, but not very.
是的，但不是很害怕。