“鲸类”造句

鲸类动物在休息时减少它们的呼吸次数.
Cetaceans reduce the number of breaths they take during rest periods.

鲸类动物是否经历梦睡眠还不清楚.
It is not clear whether cetaceans undergo dream sleep.

须鲸类;露脊鲸;长须鲸; 蓝鲸;座头鲸.
Any of various similar cetaceans, such as the killer whale.

• #鲸类