词汇	freedom radical
释义	freedom radical 自由基
随便看	Overhead Sensor over head serve overhead service entrance cable overhead servicing vehicle overhead sewing Overhead shading overhead shot overhead-shot over head shot overhead shovel overhead side volt-meter overhead sign overhead sign structures design manual overhead single contact linesystem overhead single contact line system overhead single-rail traffic overhead sling with balancer attachment overhead smash overhead smashing overhead sonar overhead spending variance overhead spray overhead sprinking system overhead sprinkler overhead sprinkling system