To throw something away means to get rid of something, to dispose of something that you do not want or need.

To throw something away指的是清除某些东西，处理一些你不想要或不需要的东西。

Rule of thumb: always know the right way to dispose of something before you even start to use it.

经验法则：在您开始使用某物之前， 始终了解正确的处理方法。

" To dispose of (something)" means to get rid of something, so the garbage disposal is the machine that helps you get rid of the unwanted food that you didn't eat or simply didn't want.

“To dispose of (something)” 的意思是摆脱掉一些东西，所以垃圾处理机就是帮助你摆脱那些你没吃过或根本不想吃的不需要的食物的机器。