1. 简单地说：in any case 无论如何,不管怎样 | in brief 简单地说 | in case 假使,以防万一

2. 简言之;以简洁的形式：in any event 不管怎样,无论如何 | in brief 简言之;以简洁的形式 | in case of 假如,万一...

3. 简言之：in a word 总之 | in brief 简言之 | in conclusion 总;最后

4. 简单扼要地：61. literature n.文学(作品),文艺,著作,文献 | in brief简单扼要地 | 63. consequently adv.从而,因此

adv

1. in a concise manner
in a few words

e.g. the history is summed up concisely in this book
she replied briefly
briefly, we have a problem
to put it shortly

Synonym: conciselybrieflyshortlyin short