The problem was that the female humboldt penguins have proven too shy in their advances , the director of the zoo in the northern port city of bremerhaven said 这家动物园位于德国北部城市不来梅港，动物园主管海克许克说，问题是雌性洪堡企鹅向来很害羞，不会主动接近雄性。
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The problem was that the female humboldt penguins have proven too shy in their advances , the director of the zoo in the northern port city of bremerhaven said 这家动物园位于德国北部城市不来梅港，动物园主管海克?许克说，问题是雌性洪堡企鹅向来很害羞，不会主动接近雄性。
