2 sentences

1. 隔夜的饭菜容易变质。

   gé​yè de fàn​cài róng​yì biàn​zhì.

   Overnight leftovers spoil easily.

   Source: Dong Chinese Dictionary

2. 这封急信不能隔夜，必须立刻送到。

   zhè fēng jí xìn bù néng gé​yè, bì​xū lì​kè sòng dào.

   This urgent letter cannot wait until tomorrow; it must be delivered immediately.

   Source: Dong Chinese Dictionary