单词	蛇坑
释义	蛇坑phr.snake pit蛇洞，蛇坑
随便看	circular trajectory circular--trajectory circular transformation circular transmission line chart circular travelling ring outfit circular triads circular triangle circular trip circular truncated cone circular uniform distribution circular variable circular velocity circular vent pipe circular vibration circular vibration generator circular view circular vortex circular wait circular-wait deadlock condition circular wave circular-wavegudie circular wave guide circular waveguide circular-waveguide slot circular wave number