Why not again?

为什么不再次？

youdao

Why not try again?

为何不再试一下？

《新英汉大辞典》

It may not be as cushioned and lovely to run on grass, soil and twigs but then again, why not try something different?

可能在草地、泥地和树枝上跑并不怎么有趣，但为什么不去感受一下新鲜事物呢？

youdao

Again,getting rid of the negative does not guarantee us the positive, which is why already in the 1940s, wrote that most men lead lives of quiet desperation.

再强调一次，摆脱消极,不能保证我们变得积极，因此早在19世纪40年代，认为，大多数人都活在沉默的压抑中。

哈佛公开课 - 幸福课课程节选

Again, this is before the course, but why not?

我们又讲得有点超前了,但是也无妨

耶鲁公开课 - 欧洲文明课程节选

Why not double that again?

FORBES: Energy's Challenges

Sources would not say why they again felt the need to conduct a search.

CNN: Hatfill

So the real question is why did the police not investigate again in 2009-2010?

BBC: Leveson's police grilling only the beginning