1 sentence

1. 规则总是存有例外，例如，并不是所有鸟都会飞。

   guī​zé zǒng​shì cún​yǒu lì​wài, lì​rú, bìng bù​shì suǒ​yǒu niǎo dōu huì fēi.

   Rules often have exceptions; not all birds can fly.

   Source: CCMatrix