2 sentences

1. 你不能同时改变太多的变量。

   nǐ bù​néng tóng​shí gǎi​biàn tài​duō de biàn​liàng.

   You can't change too many variables at once.

   Source: CCMatrix

2. 更不寻常的事情和全局变量需要更具描述性的名称。

   gèng bù​xún​cháng de shì​qing hé quán​jú biàn​liàng xū​yào gèng jù miáo​shù xìng de míng​chēng.

   More unusual things and global variables need more descriptive names.

   Source: CCMatrix