Waves are beautiful to look at, but they can destroy ships at sea, as well as houses and buildings near the shore. What causes waves? Most waves are caused by winds blowing over the surface of the sea. The winds blow across the sea, pushing little waves into bigger and bigger ones.
波浪看起来很美，但是它们可以摧毁海上的船只，以及海岸附近的房屋和建筑。波浪是怎么造成的? 大多数海浪是由吹过海面的风引起的。风吹过海面，把小浪吹成越来越大的浪。
destroy v. 破坏，毁灭。A wildfire can destroy everything in its way.一场野火可能会破坏一切。
shore n. （海、湖或大河的）滨，岸。The waves drove against the shore.波浪冲击着岸边。
The size of a wave depends on how strong the wind is, how long it blows, and how large the body of water is. In a small bay, big waves will never build up. But at sea the wind can build up giant, powerful waves.
浪的大小取决于风的强度、风吹的时间长短和水体的大小。在小海湾里永远不会形成大波浪。但在海上，风可以形成巨大而强有力的海浪。
depends on 取决于；依赖于。The success or failure of the plan depends on you.这项计划的成败取决于你。
bay n.（海或湖的）湾。The bay glittered in the sunshine.海湾在阳光下闪闪发光。
build up增进；积累。These help us build up a picture of life.这些有助于建构生活画面。
A rule says that the height of a wave (in meters) will usually be no more than one-tenth of the wind's speed(in kilometers).In other words, when the wind is blowing at 120 kilometers per hour, most waves will be about twelve meters.
有一条规则说，海浪的高度(以米为单位)通常不会超过风速(以公里为单位)的十分之一。 换句话说，当风速达到每小时120公里时，大多数海浪将达到12米左右。
height n. 身高；高；高度。It is almost 2 metres in height.它差不多有2米高。
no more than 至多，不过。The company employs no more than a couple of dozen people.这个公司顶多雇用了几十个人。
,
