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
It doesn't matter. Let's wait until the next time.
没关系。下次还有机会。
Please send your report to me at the office by Monday.
请于周一以前将报告送到我的办公室。
It's always warm in September and October.
9月和10月总是很暖和，