Nigra
[医] 黑质
🗣️ 情景例句
Rome wasn't built in a day.
罗马不是一天建成的。
Diseases come on horseback, but go away on foot.
病来如山倒，病去如抽丝。
They did not even tell their wives.
但他俩连自己的妻子都没告诉。