The secondary key can be set to be persistent or temporary.

该密钥可以是永久性的，也可以是临时性的。

youdao

We were persistent then, we just need to be persistent now.

那时我们坚持下来了，现在也只要坚持下去。

youdao

We were persistent then, we just need to be persistent now.

那时我们坚持下来了，现在也只要坚持下去。

youdao