In these and many other cases, masturbation can be a substitute for sexual intercourse which relieves tension, exercises the body, stimulates the imagination, and keeps the sexual capacities alive.是什么意思_In these and many other cases, masturbation can be a substitute for sexual intercourse which relieves tension, exercises the body, stimulates the imagination, and keeps the sexual capacities alive.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句