副詞 in brief:

1. in a concise manner; in a few words
   同義詞：concisely, briefly, shortly, in short

1. In brief, mammals are warm-blooded, lung-breathing, hairy vertebrates.
   簡(jiǎn)言之，哺乳動(dòng)物是溫血、肺呼吸和多毛的脊椎動(dòng)物。
2. I treated the subject in brief outline.
   我簡(jiǎn)單地概述了那個(gè)問(wèn)題。
3. In brief, your work is bad.
   總之，你做得不好。
4. In brief, Tom is a lazy boy.
   簡(jiǎn)而言之，湯姆是個(gè)懶孩子。