单词	四节课
释义	四节课 four periods classes
随便看	single V butt weld single V corner joint single vector hydrophone Single vector hydrophone signal processing single vector-sensor single veed weld single veegroose single veegroose with root faces single-vee groove single-Vee groove with root face single vehicle single-vehicle Single Vehicle Accident single-vehicle driving risk single vehicle emission factors single-vehicle output single vehicle tester single velocity electron beam single-velocity electron beam single velocity stage single-vendor single vendor and single distributor single-vendor environment Single Vendor Integrity single-vendor multi-buyer