It swam quickly, stopped suddenly and started swimming slowly again.
它游的很快，突然停下来并开始游的很慢。
The boat sailed quickly by the hole, and the rat swam after it.
这艘船快速地驶过那个洞穴，老鼠游过来追这艘船。
After it had passed, they swam on as quickly as they could because they knew that the boat would soon return.
快艇过去之后，他们以最快的速度向前游去，因为他们知道快艇马上就要转回来。
Came to the pond, I took a paper cup, found on a stone with a small tadpoles, then put the cup gently stretch in the past, astute tadpoles have found dangerous to be near it, it swam away quickly.
来到池塘边，我把一个纸杯拿着，发现石头上有一只小蝌蚪，便把杯子轻轻地伸了过去，机敏的蝌蚪发现有危险物向它靠近，就飞快地游走了。
As soon as it noticed a human's shadow, it swam away quickly.
它发觉一个人的阴影时，就赶快逃泳了。
As soon as it noticed a human's shadow, it swam away quickly.
它发觉一个人的阴影时，就赶快逃泳了。
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