1、To combine two or more people or things into a pair, group, mixture, etc. （将…放在一起）
E.G.1：Just make sure you don’t put those three together–they always cause trouble when they’re in a group.
E.G.2：I thought it would take me less than an hour, but I’ve been putting this table together all evening!
2、To build or assemble something; or to figure out an idea, plan, etc. （设想出、拼凑出）
E.G.1：Please put together an outline of your plan and have it on my desk by Friday.
E.G.2：I’m putting together an engagement party tomorrow afternoon for Karl’s birthday.
3、To consider, contemplate or sort out multiple things in order to arrive at some conclusion or deduction.（合计、盘算…）
E.G.1：There were so many elements to the case that I just couldn’t put them all together.
E.G.2：When I put all the evidence together, it seemed pretty clear that the firm was lying to me.