Rarefactive
a. 稀少的, 稀薄的, 纯净的, 稀疏的
🗣️ 情景例句
it takes a little bit of money to run a campaign.
竞选活动需要花一些钱。
To sum up, she is a nice girl.
总之，她是个可爱的女孩。
This boy has no job.
这个男孩没有工作。