Excludability
n. 排他性
🗣️ 情景例句
You know everyone, Alexandra.
你认识每一位吧 Alexandra。
I slipped on the stairs and fell down.I broke my leg.
我在楼梯上滑倒了并且掉下来我弄断了腿的。
She can't come. She has to help her Mommy!
她不能来。她得帮她妈妈的忙！