It is not a complete game engine, so it does not support sound, networking or advanced physics (but it has some support for collisions) and external libraries have to be used for that.

它并非一个完整的游戏引擎，所以它不支持声音，网络或者高级的物理系统(但它对碰撞检测有一定程度的支持)，但我们可以使用扩展库来实现。

youdao

It is not a complete game engine, so it does not support sound, networking or advanced physics (but it has some support for collisions) and external libraries have to be used for that.

它并非一个完整的游戏引擎，所以它不支持声音，网络或者高级的物理系统(但它对碰撞检测有一定程度的支持)，但我们可以使用扩展库来实现。

youdao