来帮忙翻译一下，谢谢~

I have both received and lost a lot after you left.

一楼注意机器翻译的顺序
二楼请注意时态

I've learnt and lost a lot when you are gone.

I gain a lot,and also lose a lot when you are gone.

after you leave,i gain as well as lose a lot of things

After you leave, I have harvested many, has lost many