Rarefactive
a. 稀少的, 稀薄的, 纯净的, 稀疏的
🗣️ 情景例句
with the school-board committee.
与联合校董会有关。
Not only did I forget my train ticket, but I also forgot my passport.
我不仅忘了带火车票，还忘了带护照。
The ground supported fewer plants, and the insects which lived on these plants died out.
地上长的植物少了，生活在这些植物上的昆虫就消亡了。