单词	observe frequency
释义	observe frequency 实际频数
随便看	lower left-hand corner lower left limb Lower Left Quadrant Circular Arc lower leg lower-leg lower leg crash lower leg foot index lower leg-foot index lower leg girth index lower leg length-girth index Lower leg reattachment lower leg traction splint lower length-biased ordering Lowerl esophageal sphincter Lower lethal temperature lower letter row lower level lower lid reconstruction lower lid retraction lower lid,right eye lower lift drum lower light lower limb girdle lower limb hypertrophic osteoarthropathy lower-limb hypertrophic osteoarthropathy