Mea
abbr. 維修工程分析（Maintenance Engineering Analysis）；β-巰基乙胺（β-Mercaptoethylamine）；沿航線最低高度（Minimum Enroute Altitude）
??? 情景例句
Reading?
讀書？
So that's how it is!
原來(lái)如此。
Has he had anything to eat this morning?
他今早吃了什么東西嗎？