Ventilation indices
[医] 换气指数
🧩 词语组成解析
ventilation
[,vɛntl'eʃən]
n. 空气流通;通风设备;通风方法;公开讨论;
vent- =wind,表示”风”##lat = bring,out,表示”拿, 带”#词根助记：venti风+lat=通风
pl. 索引, 指针, 指数, 指标
🗣️ 情景例句
I can only stay a few minutes.
我只能停留几分钟。
I have been told you have just changed the interest rate on savings accounts. Is that true?
听说你们储蓄率刚调过，是真的吗？
I want some envelopes,please.
请给我拿几个信封。