英语单词短语词组“relative-velocity”的中文翻译、释义及用法解析-英汉词典-学苑网

单词	relative-velocity
释义	请查阅词条：relative velocity
随便看	helped helper helpful helpful comment helpful criticism helpful discussion helpful guidance helpful guide helpfully helpfulness helpful suggestion helping helping hand helping verb helping-verb helpless helplessly helplessness helpless victim helpline help menu help-menu help-out help (sb) out help-sb-out