词汇	fall head-first
释义	fall head-first 头朝前裁下
随便看	flexible place flexible placement system flexible placenta and ovum curet flexible placenta and ovum curette flexible plan flexible planar frame flexible planar linkage flexible planning Flexible plans flexible plastic flexible plastic-covered cable flexible plastic disc flexible plastic disk Flexible plastic packaging flexible plastics flexible plastic sheeting flexible plastic sleeve flexible plastic surgical depressor flexible plastic tube flexible plastic tubing flexible plate Flexible plate printing flexible plates flexible plate supersonic nozzle Flexible platform