单词	play ball
释义	请查阅词条：ball
随便看	positive logic positively positively positive-negative positiveness positiveness positivenesses positive neutralism positive neutralist positive neutrality positive organ positive pole positive prescription positive pressure positive rays positive reinforcement positive result positive sign positive-sum positive sum positive thinking positive transfer positive transference positive vetting positivism 走私走穴走笔走索走红走绳走色走访走读走读生 Pumpenstempel Pumpenstempelbewegung Pumpenstempelführung Pumpenstempelhub Pumpenstempelrückholfeder Pumpenstopfbuchse Pumpenstufe Pumpenstutzen Pumpenstößel Pumpentechnologie