consisting of many interconnecting parts or elements; intricate.
a complicated stereo system
同义词：
complexintricateinvolvedconvolutedtangledelaborateimpenetrableknottytrickythornyserpentinelabyrinthinetortuouscumbersomeByzantineDaedalianGordianconfusedconfusingbewilderingbafflingpuzzlingperplexingdifficult to understandabove one's headinformal：fiddlyrare：involuteinvoluted
