let's play pc games 为什么要加s

为什么 We like computer games 要加"s",而 Let's play computer game 比如说:let's play computer games,game后为什么+s? ---Let's play computer games. let's play computer games. 1.let's play computer games. let's play computer games 否定句 Can we let’s play computer games? Let`s play computer games.怎么回答 Let's play games.翻译过来是什么意思 —Let’s play computer games, Tony. 玩电脑游戏为什么是play computer games 为什么game要加s 还有 he always _______ computer games (play 要加 s