Black substance
[医] 黑质
🧩 词语组成解析
black
[blæk]
adj. 黑（色）的;黑色人种的;黑暗的;不加牛奶的;
n. 黑色;黑人;黑颜料;黑暗;
v. 使变黑;抵制;拒绝;使变黑暗;
🗣️ 情景例句
or a taxi.
或者坐计程车。
Don't throw out your dirty water before you get in fresh.
清水未打来，赃水莫倒掉。
Hay had been cut and cowsheds had been cleaned.
干草已切好，牛棚也打扫干净了。