1 sentence

1. 只要掌握了其中的诀窍，这道难题就能迎刃而解。

   zhǐ​yào zhǎng​wò le qí​zhōng de jué​qiào, zhè dào nán​tí jiù néng yíng​rèn'ér​jiě.

   As long as you master the knack, this difficult problem will be easily solved.

   Source: Dong Chinese Dictionary