Tā wàng le dài yàoshi, zhǐhǎo jiào lái suǒjiàng kāi mén.
He forgot his key and had no choice but to call a locksmith to open the door.
Nà wèi suǒjiàng jìshù jīngzhàn, jǐ fēnzhōng jiù bǎ suǒ huàn hǎo le.
That locksmith was highly skilled and changed the lock in just a few minutes.
