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雷达卡
Perhaps you\'ve had to put up with a moody, uncooperative teenager. You may well have been one yourself. A new study suggests that dogs go through a similar phase of stubbornness and disobedience when they hit puberty at about eight months old.
你身边情绪化、叛逆的青少年可能够你受的，你自己曾经可能也是其中一员。一项新的研究显示，狗狗在8个月大的时候会经历相似的倔强叛逆的阶段。
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