The fish rests on the ocean floor as he prepares to make a dart for any passing prey he has lured towards him using the protrusion above his mouth.
这条鱼在海底静静地等待被他嘴巴上面的突起物应有过来的猎物，随时准备对游过的美餐发动突袭。
The river's mouth is the place where a river goes into the ocean. Most rivers become very wide at their mouths, forming deltas from soil deposited there.
河流的出口是河流进入海洋的地方。大多数的河流在出口处变得非常宽阔，土壤在那儿沉积，形成三角洲。
They spread apart after they were out of the mouth of the harbour and each one headed for the part of the ocean where he hoped to find fish.
它们一出港口就分散开来，每一条驶向指望能找到鱼的那片海面。
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