African penguins( also called jackass penguins for their donkeylike braying) face an uphill struggle to rebuild their population after a century of decline.

• 非洲企鹅（称驴子企鹅，因为它们那接近驴嘶的叫声）个世纪以来数目持续减少，如今的它们正面临着一个艰苦的重建种群的斗争。