Selection function
[计] 选择函数, 选择功能
🧩 词语组成解析
🗣️ 情景例句
It only takes eight minutes by bicycle to the aerobics class.
骑自行车去上有氧运动课只需要八分钟。
Who serves everybody gets thanks from nobody.
人人都侍候，个个不见好。
but when she got out at her own floor, both were forgotten in her sudden discovery that her front door was open.
但她到自己的楼层走出电梯后，就把这两件事忘了个干净，因为她突然发现她家的大门开着。