这句话是什么意思 DON'T DUMP A PUZZLE ON THE FLOOR UNLESS YOU HAVE THE TIME TO PUT IT TOGETHER

如果你没有足够时间完成拼图，就不要把它散落在地板上。

First of all, I have to tell you this is not an idiom. The chances for using it are almost none.

I. 此话表面的含意：
It means that if you dump the puzzle on the floor, and don't put it together, you will have little pieces of jigsaw puzzle all over the place.

II。 此话可能的深层含意：不要轻易尝试复杂的事，除非你有足够的时间。
Don't start something (especially something that makes a mess) if you don't have the time to finish it.

Hope this helps.

Cheers

Note: 本人已在海外生活了数十载。为了慎重起见，我的答案都与老美或老英交换过意见，你放心使用吧。如有任何问题，可补而述之。

楼上直译，引申意为
在难题没有解决的时候，请不要放弃

不要在地板上玩拼图,除非你有足够的时间把它拼完
puzzle 是拼图的意思