高低温循环泵 原理图:That is all there is to it!怎么翻译？

That is all there is to it!怎么翻译？ who is that over there It is that all?是什么意思？ it is all there is to it.怎样翻译? That there is life on another planet is almost impossible. Is there any need for all this hurry? there is a possibility that products may infringe is there anything that i can help with? ____everything that happens,there is a reason or reasons. That school is very small. There are only___students in it.