The culling of seal cubs has led to an outcry from environmental groups.
宰杀海豹幼仔的行为已引起了环保团体的强烈抗议。
《柯林斯英汉双解大词典》
2
Although polar bears' locomotion is similarly inefficient, polar bear cubs walk along with their mother.
尽管北极熊的运动能力同样低下，北极熊幼崽还是和妈妈一起前行。
3
Black bear cubs use trees for defense, whereas brown bears and polar bears, which regularly inhabit treeless environments, rely on aggression to protect their cubs.