And it becomes more and more independent and playful. 幼鲸得以越来越独立与活泼
It may look playful, but there's no harder life on the grasslands 看起来很好玩 但草原上最艰苦的生活
The playful calf is now drinking five hundred liters of milk a day 顽皮的小座头鲸每天要喝500公升奶