Mea
abbr. 维修工程分析（Maintenance Engineering Analysis）；β-巯基乙胺（β-Mercaptoethylamine）；沿航线最低高度（Minimum Enroute Altitude）
🗣️ 情景例句
autograph copies for the guests at the opening?
在展览开幕时为客人在书上亲笔签名呢
Maybe we should hold off until we have covered item B on our agenda.
也许我们应该先谈论完B项议题。
it must be known to any kind of radio astronomer in the universe.
这个频率是宇宙中任何射电天文学家都应该熟悉的。