蚂蚁格格的泡泡剧场/蚂蚁格格双语可乐系列 ... Why Do You Cry?你为什么哭? Up—and—down Wind上下风 A Big Scallywag大饭桶 ...
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Normal swells, known technically as gravity waves, are created by wind pushing the surface of the sea up and gravity then pulling it down, causing it to bounce.
一般的波浪,技术上被成为重力波,是由于风推动着海洋表面上升而后又在重力的作用下被拉向下方,这便会导致海水的回弹。
Looking up, looking down, measuring the distance, figuring just the right wind direction and speed.
他往上看看,往下看看,测量了一下距离,又计算了适当的风向和风速。
The trend could simply be part of a natural and long-term cycle that pushes wind speeds both up and down over the course of many decades.
这种趋势可能仅仅是自然的一部分和长期的循环,这种循环是在每经过数十年时间,风速会快-慢的循环一次。
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