Let's play computer game的play为什么要用原型

Let's play computer game的play为什么要用原型 比如说:let's play computer games,game后为什么+s? 为什么 We like computer games 要加"s",而 Let's play computer game Let`s play computer game!Good egg 意思 Let's go to church!的肯定回答 Let's play computer game 的否 ---Let's play computer games. let's play computer games. 玩电脑游戏为什么是play computer games 为什么game要加s 还有 lt's good to play computer game Let's play a word game Quiz :let's play this game! let's play c_____ game,OK?