2 sentences

1. 试着和朋友一起头脑风暴。

   shì​zhe hé péng​you yī​qǐ tóu​nǎo​fēng​bào.

   Try brainstorming with some friends.

   Source: CCMatrix

2. 如果没有游戏规则，头脑风暴将无法奏效。

   rú​guǒ méi​yǒu yóu​xì​guī​zé, tóu​nǎo​fēng​bào jiāng wú​fǎ zòu xiào.

   Without the rules of the game, brainstorming won’t work.

   Source: CCMatrix