n. a portable power saw with a reciprocating blade; can be used with a variety of blades depending on the application and kind of cut; generally have a plate that rides on the surface that is being cut
n. fine-toothed power saw with a narrow blade; used to cut curved outlines
n. 线索( jigsaw的复数形式 ); 拼图; 拼板玩具; 神秘莫测的事物