一把钥匙开一把锁
yī​bǎ​yào​shi​kāi​yī​bǎ​suǒ

one key opens one lock

  1. 一把 yī​bǎ measure wordnumeral
    [measure]
    a classifier for things with handles or things that can be gripped, such as chairs, umbrellas, or knives
  2. 钥匙 鑰匙 yào​shi noun
    key
    key for opening a lock
  3. 开 開 kāi verbparticle
    to open
    to open; to unfold; to unseal; (of flowers) to bloom; to carve or cut open
  4. 一把 yī​bǎ measure wordnumeral
    [measure]
    a classifier for things with handles or things that can be gripped, such as chairs, umbrellas, or knives
  5. 锁 鎖 suǒ noun
    lock
    a device used to secure a door, container, or vehicle, opened by a key, code, or fingerprint