懂中文 Dong Chinese

一把钥匙开一把锁

yī​bǎ​yào​shi​kāi​yī​bǎ​suǒ

One key opens one lock.

Definitions

一把钥匙开一把锁 (一把鑰匙開一把鎖) 

yī​bǎ​yào​shi​kāi​yī​bǎ​suǒ

One key opens one lock.; There is a different solution for each problem. (idiom)

Sources