游泳

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.

大海里的许许多多的鱼中只有鲨鱼没有气囊。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。

It also suggests the experimental and research outcomes that swimming training can significantly improve the tension of the pneumogastric nerve.

文章论述了运动心率监测在学校游泳队训练和比赛中多方面的创新应用，并通过实验得出游泳训练能明显提高迷走神经张力的研究结论。

Half said they had " muffin tops "-" podgy rolls sticking out over the top of their waistband ".

太过稀少63的人说自己的脖子不够漂亮还有半数人对腰上的"游泳圈"感到恶心。

There was widespread discontentment with teeth 57 per cent , thin hair 56 per cent , and neck 63 per cent . half said they had " muffin tops "-" podgy rolls sticking out over the top of their waistband ". women in manchester were found to be the most body - obsessed

统计显示， 57的英国女人觉得自己的牙齿很难看56的女人认为头发太过稀少63的人说自己的脖子不够漂亮还有半数人对腰上的"游泳圈"感到恶心。

With their large, slightly webbed front paws, polar bears are powerful swimmers.

拥有硕大，细长的蹼的前掌的北极熊是游泳高手。

Swimming is one of the best' exercises for poliomyelitis patients.

游泳是适合小儿麻痹患者的运动项目之一。

When I lived in the countryside, I used to swim in the pond.

我住在农村的时候，常常在那个池塘游泳。

I'm afraid of swimming in the pond.

我害怕在游泳池里游泳。

When you're racing in a pool, you know what to expect.

当你在泳池中游泳的时候，你知道会发生什么。

I like to swim in the swimming pool.

我喜欢在游泳池游泳。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。