1 sentence

1. 由于时间紧迫，我们必须将这些难题各个击破。

   yóu​yú shí​jiān jǐn​pò, wǒ​men bì​xū jiāng zhè​xiē nán​tí gè​gè jī​pò.

   Due to the tight schedule, we must tackle these difficult problems one by one.

   Source: Dong Chinese Dictionary