Combinational probler
[电] 综合问题
🧩 词语组成解析
[计] 组合的
🗣️ 情景例句
because, Danny,
因为Danny，
In secondary school, children study history and geography.
中学的小孩会读历史和地理。
Some of my acquaintances in the country come up to town once or twice a year to visit the theatre as a special treat.
我在乡村有一些熟人，他们每年进城来看一回或几回戏，并把此看作一种特殊的享受。