Arb
abbr. 空气资源委员会（Air Resources Board）；航空注册局（Air Registration Board）；航空研究局（Air Pesearch Bureau）
🗣️ 情景例句
Could human beings one day be built on a production line just like any other products?
人类是否有一天会如其它产品般在生产线上生产？
Don't open your book.
别打开书。
It was from the study of these that so much was learnt about the interior of the earth.
正是从这两种波的研究中，我们可以了解到地球内部的许多情况。