- (also jigsaw puzzle)(also puzzle especially in North American English)
a picture printed on cardboard (= very thick, stiff card) or wood, that has been cut up into a lot of small pieces of different shapes that you have to fit together again 拼图；拼板玩具 
to do a jigsaw 玩拼图
Oxford Collocations Dictionaryadjective- giant
- huge
- 200-piece
- …
- bit
- piece
- do
- piece together
- finish
- …
- puzzle
- piece
- a piece in a jigsaw
a mysterious situation in which it is not easy to understand all the causes of what is happening; a complicated problem 神秘莫测的事物；谜团 If Hollis was a double agent then the Crabb affair fits neatly into the jigsaw. 如果霍利斯是一个双重间谍，那么克拉布事件完全符合这个拼图。
Extra ExamplesOne piece of the jigsaw is still missing. 拼图还少一片。 The police managed to piece together the jigsaw and reconstruct the victim's last hours. 警方成功地将线索拼在一起，重现了受害人生前最后几个小时的情景。 This is another piece in the jigsaw that will help us understand the biology of cancer. 这是可以帮助我们理解癌症形成规律的另外一个关键点。
a saw (= a type of tool) with a narrow blade for cutting designs in thin pieces of wood or metal 线锯；镂花锯；钢丝锯
Word Originlate 19th cent.: from the verb jig + the noun saw.