Can you swim to the bottom of the pool?
你能不能潜到泳池底？
Shark is the only fish in the sea that has no pneumatocyst, which means that it will swim to the bottom or even die if stopping swimming for a little while.
没有气囊的鱼，只要停止游泳一小会儿，它就会沉下去甚至会死掉。
And Marley does more than just doggy paddle, this golden retriever loves to dive and swim right to the bottom of this seven-foot pool.
马莉会的可不只是狗刨式游泳，这只金色的寻回犬还喜欢潜水，可以直游到这个深七英尺深水池的底部。
This will help you learn to swim straight without using the bottom of the pool as a guide.
这将有助于你学会游直线而不借助池底的导航线。
Rock can't swim. He'll sink to the bottom if he follows me.
岩石不会游泳，他会沉底，如果他跟在我后面。
It has large openings at the bottom of the net. Because when haddock face a net, they swim up to escape and get caught.
网底部设计成大开口，因为黑线鳕撞到渔网第一反应是向上游动以逃生；
Here's the bottom line: you can't learn to swim sitting at the kitchen table.
这里的底线：你不能学习游泳，坐在厨房桌旁。
Here's the bottom line: you can't learn to swim sitting at the kitchen table.
这里的底线：你不能学习游泳，坐在厨房桌旁。
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