谁知道pick it up and put it down是什麽意思啊

give it up ；pick it up；put it up；put it down；分别是什么意思? shake it up and down什么意思 pick it up什么意思 keep it up\ pick it up\ put it on\ put it off\ not at all 怎么 Put it up的意思是什么啊? If you can hold something up and put it down,it is called we pick it up.will i am是什麽意思 pick it up put it down 与put down it 的区别,还有look it up和look up it的区别. If you can hold something up and put it down中文是什么意思 He put his book down and [ ] me pick up my pen Ahelp Bhelped He put his book down and ( )me pick up my pen.