Rarefactive
a. 稀少的, 稀薄的, 纯净的, 稀疏的
🗣️ 情景例句
He's busy preparing for class.
他忙着准备功课。
You are shorter than I am.
你比我矮。
It was as clear as daylight then that burglars had forced an entry during her absence.
事情很清楚，在她外出时，窃贼曾闯进家门。