我曾以为它们和我们很像，只是更和睦。

I thought they were like us but nicer.

youdao

如果其他任何人能够访问私钥，他们接下来就可以用它来“证明”身份，并以您的名义进行活动；私钥很像密码，只是更安全，更改比较困难。

Should anyone else ever gain access to the private key, they can then use it as "proof" of identity and act as you; it is like a password, only more secure and more difficult to change.

youdao

它很像一个密码，只是更改比较困难。

It's like a password, only more difficult to change.

youdao