in words 和 in a word 的区别

in words 用文字表明
1. Spoke in measured words.
说话很有分寸
2.To express oneself in words.
用言辞表达自己
3.To represent in words; describe.
描述用文字表示；描述

in a word 总之=in summary=to sum up=Anyway
通常用于文章结尾，表示概括总结

in words
prep.用文字表明

例句：

1. Spoke in measured words.
说话很有分寸

2.To express oneself in words.
用言辞表达自己

3.To represent in words; describe.
描述用文字表示；描述

in a word 总之

in words 用文字/话语说明
in a word 总之