它是用来开锁的。

It's used to open the lock.

youdao

但这些人并不了解开锁的原理，而只是插一个螺丝刀在锁中来制造印迹。

These people rarely understand lockpicking and just jam a screwdriver in the lock to make marks.

youdao

做事成功的要诀就如同钥匙开锁的道理一样，如果你不能准确对号，那么一定无法打开成功之门。

The key to the success of things like the key to unlock the same reason, if you can not accurately check mark, then we can not open the door to success.

youdao