介绍： 版权归原作所有，仅供此学习，若有侵权请告知删除。
[11:38.45]The last reading.
[11:42.31]Wetsuit
[11:43.89]A wetsuit is a special suit worn by people
[11:47.64]who want to spend a lot of time in the water.
[11:51.05]Wetsuits are usually worn by swimmers, divers, or surfers who swim in cold water.
[11:58.16]Wets...

介绍： 版权归原作所有，仅供此学习，若有侵权请告知删除。
[11:38.45]The last reading.
[11:42.31]Wetsuit
[11:43.89]A wetsuit is a special suit worn by people
[11:47.64]who want to spend a lot of time in the water.
[11:51.05]Wetsuits are usually worn by swimmers, divers, or surfers who swim in cold water.
[11:58.16]Wetsuits help the swimmers retain body heat.
[12:02.12]This, in turn, helps them avoid a dangerously low body temperature.
[12:07.56]Generally, wetsuits are made of rubber.
[12:11.21]The suit traps a thin layer of water between the rubber and the wearer's skin.
[12:17.41]Body heat warms the layer of trapped water and helps keep the wearer warm.
[12:23.61]The wetsuit must be tight,
[12:25.58]or else the layer of trapped water will be too wide to keep warm.
[12:30.15]There are different thicknesses and styles of wetsuits
[12:34.27]to fit different water conditions and the wearer's needs.
[12:38.63]Usually, the thicker the wetsuit,
[12:41.19]the warmer it keeps the wearer.
[12:43.27]However, the thicker the wetsuit,
[12:45.60]the more difficult it is to move in it.