Black leader
【矿物】石墨，笔铅，黑铅
🧩 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
I can't understand a word anyone is saying.
我一句也不明白他们在说什么。
Be slow to promise and quick to perform.
不轻诺，诺必果。
And when do you take your next exams?
还有，你什么时候参加下次考试？