-perplexing;complicatedandconfused;complexandmixed;intricateandcomplex;wheelswithinwheels;verycomplicated:
Itisacomplicatedproblem.这个问题错综复杂。
Althoughtheproblemisintricateandcomplex,itcanbesolvedveryquicklywithanelectroniccomputer.这道题虽然错综复杂,但用电子计算机很快就能解出。