Beir
abbr. biological effects of ionizingradiation 电离辐射生物效应
🗣️ 情景例句
He is now involved in stocks.
他现在热衷于股票。
Don't bother me.
别惹我！
Economy is one powerful motive for camping, since after the initial outlay upon equipment,
图省钱是露营的一个主要动机，因为除了开始时购置或是租借一套露营装备外，