Catechu black
[化] 儿茶黑
🧩 词语组成解析
n. 儿茶\\n[医] 儿茶
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
Seven after nine? No. I'm sure he's in his office.
九点零七分 ，不会太早的。我肯定他到办公室了。
Reckless youth makes rueful age.
虚度青春，悔恨无已。
You're not busy doing anything, are you?'
你不忙，是吗？”