这些化石看起来像海豚，它们肯定像海豚一样在水中生活。
The fossils look like dolphins and they surely lived like dolphins, in the water.
在前三个阶段中，蚊子都是在水中生活，以水藻和其他微生物为食，并且必须定期游到水面呼吸空气。
During the first three stages, they live entirely in water.During the larva stage, they feed on algae and other microorganisms and must frequently bob to the surface of the water to get air.
然而，从某种程度上讲，海龟并没有像鲸鱼或儒艮一样完全回到水中生活，因为它们依旧在海滩上产卵。
However, they are, in one respect, less fully given back to the water than whales or dugongs, for turtles still lay their eggs on beaches.
古时候的鲨鱼在淡水中生活？
如某些两栖动物即使在完全成熟并已经度过水中生活的时期后仍然保留有鳃。
For example, certain amphibians retain fishlike gills even when fully mature and past their water-inhabiting period.
有些大量生活于不常被潮水淹没的新鲜水域中，而另一些则喜欢在盐水中生存。
Some thrive in the relatively fresh water found in areas that aren't often inundated by ocean tides, while others seek out a saltier brew.
龟是通常可以在陆上及水中生活，亦有长时间在海中生活的海龟。
Turtle is on land and water can usually be life, also have long time in living in the sea turtles.
美西蝾螈属于两栖类动物，能够在陆地和水中生活。
The axolotl is an amphibian - one of a group of animals that spend their lives both on land and in water.
这些是深海鳕鳗的首次活动影像–这是一种能够比其他任何已知鱼类在更深的海水中生活的鱼。
These are the first-known moving images of the abyssal cusk eel – a species of fish that can live deeper in the sea than any other known fish.
一生都生活在水中的生物，他们在池溏中生活的安怡自在。
The creatures living in water in whole its life can habitat in the pond free and comfortably.
蚌类可以在受污染的水中生活，因为它们天生有净化细菌，真菌和病毒的能力。
Mussels can thrive in polluted water because of an inborn ability to purify bacteria, fungi, and viruses.
人的血液是热的，如果得不到一定的热量，人就难以长期在海水中生活。
Mans warm blood makes it difficult for him to live long in the sea without some kind warmth.
人的血液是热的，如果得不到一定的热量，人就难以长期在海水中生活。
Mans warm blood makes it difficult for him to live long in the sea without some kind warmth.
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