词汇	joint of the leg
释义	joint of the leg 腿关节
随便看	learning behavior disorder learning-behavior model learning behaviors learning behavior tracking learning behaviour learning belief learning beliefs learning benefit learning block learning borders learning-branch of soft starting learning bridge learning burden learning burnout learning-burnout learning by advice-taking learning by analogy learning by a passive absorption learning by appointment system learning by association learning by being told learning by chance learning by contract learning by contract system learning by deduction