Concepts
n. 概念, 观念；思想（concept复数形式）
🗣️ 情景例句
I know who you are.
我知道你是谁。
About how long does it take?
大约要坐多久？
Towards midday, a girl heard a muffed cry coming from behind on of the walls.
快到中午的时候，一个女售货员听见从一堵墙里传出一种闷声闷气的叫声。