復(fù)數(shù)：snowboardings

n.the act of sliding down a snow-covered slope while standing on a snowboard

Snowboarding Injuries
Severe snowboarding injuries.
Boot for snowboarding and the like
Spectrum of injuries from snowboarding
Releasable binding system for snowboarding
Snowboarding injuries, a four-year study with comparison with alpine ski injuries.
Snowboarding injuries: trends over time and comparisons with alpine skiing injuries.
Differing injury patterns in snowboarding and alpine skiing
Evaluation of alpine skiing and snowboarding injury in a northeastern state
An international review of head and spinal cord injuries in alpine skiing and snowboarding