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Section45 nbsp;Swimming etc.
The crawl, the backstroke, the breathstoke and the butterfly, what are these?蛙泳、仰泳、自由泳、蝶泳，这些是什么?
They are the different strokes we can use when swimming.它们是游泳时我们可以选择的不同划水方式。
There are others, but these are the main ones.还有其它的，但这些是主要的。
These are strokes used for swimming on the water.这些是在水面上游泳的划水方式。
But what about under the water?那水下的呢?
Snorkeling is a method of swimming on the surface while looking under the sea.潜游是一种在水上游动并往水下看的游泳方式。
We use a tube which fix into our mouth for breathing, and a mask to help us see.我们用一根管子插入嘴里帮助呼吸，用面罩帮助视觉。
This way we can skim along the surface without bringing our head out of the water for air.这样我们可以沿水面游动而不用抬头呼吸。
We use scuba equipment if we want to go deeper and stay under the water for a longer time.如果要在水里呆得更深一点更久一点，我们可以用水下自我呼吸的配套设备。
Scuba is an acronym for Self Contained Underwater Breathing Apparatus.它是一种为人们在水下自我呼吸的配套设备的首字母缩写。
Usually when scuba diving, we will wear a special waterproof suit, a weighted belt, a mask, flippers and an oxygen tank.通常穿着配套的水下呼吸器潜泳时，我们要穿一套特别的防水服，一条重腰带、一个面罩、蹼以及氧气瓶。
In order tonbsp;do this kind of diving, we should first be trained, as it can be dangerous.要进行这样的潜水，我们首先要经过训练，因为这具有危险性。
Another form of diving is to plunge into the water from above the surface.另一种(游泳方式)跳水方式是从水面上直接插入水中。
This is also an event in the Olympic Games, which involves many different styles.这也是奥运会的一个项目，它包含有很多不同形式。
Synchronized swimming is a form of dance performed in the water, and is also an Olympic event.水上芭蕾是一种在水上表演的舞蹈，也是奥运会项目之一。
So we can use the water in many exciting and interesting ways.所以我们可以在水里进行许多刺激而又有趣的活动。
Section45 nbsp;Swimming etc.
The crawl, the backstroke, the breathstoke and the butterfly, what are these?蛙泳、仰泳、自由泳、蝶泳，这些是什么?
They are the different strokes we can use when swimming.它们是游泳时我们可以选择的不同划水方式。
There are others, but these are the main ones.还有其它的，但这些是主要的。
These are strokes used for swimming on the water.这些是在水面上游泳的划水方式。
But what about under the water?那水下的呢?
Snorkeling is a method of swimming on the surface while looking under the sea.潜游是一种在水上游动并往水下看的游泳方式。
We use a tube which fix into our mouth for breathing, and a mask to help us see.我们用一根管子插入嘴里帮助呼吸，用面罩帮助视觉。
This way we can skim along the surface without bringing our head out of the water for air.这样我们可以沿水面游动而不用抬头呼吸。
We use scuba equipment if we want to go deeper and stay under the water for a longer time.如果要在水里呆得更深一点更久一点，我们可以用水下自我呼吸的配套设备。
Scuba is an acronym for Self Contained Underwater Breathing Apparatus.它是一种为人们在水下自我呼吸的配套设备的首字母缩写。
Usually when scuba diving, we will wear a special waterproof suit, a weighted belt, a mask, flippers and an oxygen tank.通常穿着配套的水下呼吸器潜泳时，我们要穿一套特别的防水服，一条重腰带、一个面罩、蹼以及氧气瓶。
In order tonbsp;do this kind of diving, we should first be trained, as it can be dangerous.要进行这样的潜水，我们首先要经过训练，因为这具有危险性。
Another form of diving is to plunge into the water from above the surface.另一种(游泳方式)跳水方式是从水面上直接插入水中。
This is also an event in the Olympic Games, which involves many different styles.这也是奥运会的一个项目，它包含有很多不同形式。
Synchronized swimming is a form of dance performed in the water, and is also an Olympic event.水上芭蕾是一种在水上表演的舞蹈，也是奥运会项目之一。
So we can use the water in many exciting and interesting ways.所以我们可以在水里进行许多刺激而又有趣的活动。
