a thumbnail sketch的意思|示意

略图 略图；简略的速写a thumbnail sketch 装配图，接续图这样一个系统或接构的计划或略图A plan or schematic drawing of such a system or such a configuration. .

简略的速写 a thumbnail sketch 略图；简略的速写 He made a thumb-nail sketch to show me where he lived. 他画了一张草图，告诉我他曾住过的地方。