Aera
abbr. 美國教育研究協會（American Educational Research Association）
??? 情景例句
since this is so easy ....
既然那么簡單……
I want to reserve a seat from los angeles to tokyo.
我要預訂一張從洛杉磯到東京的機票。
Those planning a trip to remote areas, or intending to live in countries where drinking water is not readily available, should know about the various possible methods for making water safe.
那些計劃去偏遠地區旅行，或在飲用水不現成的國家居住的人，應該知道如何使水適于飲用的各種辦法。