简言之

jiǎn yán zhī tā duì yī qiè gǎn dào yàn juàn le

简言之，他对一切感到厌倦了。

In a word, he tires of everything.

jiǎn yán zhī wǒ men xū yào yī gè fāng àn

简言之，我们需要一个方案。

We need, in short, a formula.

jiǎn yán zhī wǒ rèn wéi wǒ men yīng gāi jiē shòu tā men de yì jiàn

简言之，我认为我们应该接受他们的意见。

In short, I think we should accept their suggeation.