Rarefactions
(rarefaction 的复数) n. 稀薄化, 稀薄\\n[医] 稀疏[状态], 疏松[状态]
🗣️ 情景例句
Yeah. I really did do a good job, didn't I?
是的 ，我确实拍得不错， 对不对？
I'm very glad to meet you.
认识你很高兴。
and to exercise such initiative as falls within their sphere,
在各自的工作范围内发挥主动性，