Discrete mathematics
[计] 离散数学
🧩 词语组成解析
🗣️ 情景例句
I can't wake up in the morning without a cigarette or cup of coffee.
早上不抽根雪茄或喝杯咖啡我就醒不了。
Nobody's at home.
家里面没人。
Tim is looking at an aeroplane.
蒂姆正望着一架飞机。