Melanic forms, though, are particularly prevalent in species with complicated lives—those that inhabit a range of habitats, are active both day and night, and move between the ground and the trees.
可是，黑色外表为各种复杂形式的物种所有，它们栖息在不同地带、有白天活动的也有黑夜活动的、有在地面生存的也有在树上生存的。
Other ways to get value for money include shortening your holiday, we have a range of 10- and 11-night holidays, if 14 nights is over your budget.
其它省钱的办法包括缩短你的度假时间；如果14晚的假期超出你的预算，我们还提供了一系列10晚到11晚的度假产品。
Globally, poultry are kept under a wide variety of production systems that range from those with very rudimentary night shelters to those with fully automated, environmentally controlled systems.
在全球范围内，家禽养殖体系多样，既存在只有非常简陋的夜间遮蔽处的养殖体系，也存在完全自动化和环境可控的体系。
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