Bmd
abbr. 弹道导弹防御（ballistic missile defence）
🗣️ 情景例句
The bad news hit everyone hard.
恶耗使每个人都受到了沉重打击。
I can come any time except Sunday.
除星期天外我都能来。
Normal people tend to forget this process unless and until they are reminded of it.
衰老的过程，不经提起，正常人容易忘记；一经提醒，才会记起。