Selection function
[计] 选择函数, 选择功能
🧩 词语组成解析
🗣️ 情景例句
What impressed you the most about Shanghai?
你对上海最深的印象是什么？
God never shuts one door but he opens another.
天无绝人之路。
He should have known that the police would never allow this sort of thing.
他本该知道警察绝不会允许这类事情发生。