When the motion state of particles in a material changes, it would radiate energy.

Many quasars radiate as much power as 100 trillion suns.

许多类星体辐射的功率就如100兆个太阳那般强.

Her voice hadn't changed but I felt the anger that radiated from her.

尽管她声音没变，但我还是感受到了她所流露出的怒气。

Highways radiate in all directions form this city.

这座城市,公路四通八达.

Birds sing and flowers radiate their fragrance.

居民大都以种果树、做板模或一些小零工维持生计.

Five roads radiate from the square.

五条道路由广场向外延伸。

Solution A : Remember, racquet speed at contact will determine how much power you have.

解决方案 A: 记得, 接触点的网拍速度将决定你有多少力量.

You may ask, " When I'm waiting to receive serve, how should I hold my racquet? "

你可能会问: “ 当我准备接球的时候, 我该怎么握拍 呢 ? ”

The ball only knows how the racquet meets it at contact.

球只知道网拍在接触时如何迎接球.

He rack the tennis racquet for stringing.

他对网球拍上架处理以便架线.

This racquet is for you.

这球拍是给你的.

Fig 34. The racquet is back, pointing to the rear fence and still around eye level.

图34网拍回来, 指向后面的围墙仍然在眼睛围高度.

You may have the racquet face tilted down or closed at the point of impact.

你可能使得网拍面在冲击点倾斜下来或关闭.

Badminton is the world's fastest racquet sport.

羽毛球是所有使用球拍的运动中速度最快的一种.

Check again by tapping the racquet against your hand ( fairly hard ).

再摇晃球拍并把手柄击打自己的手检查一次.

Please give him your racquet.

请把你的球拍给他.

Djokovic takes his racquet back by employing a full shoulder turn.

德约科维奇用一个充分的转肩收回球拍.

Now, as you swing forward and up from the shoulder the racquet naturally becomes vertical.

现在, 当你从肩膀向前和向上挥拍,自然地网拍变成垂直.

Over time the swings and racquet grip are adopted automatically.

慢慢地,他挥拍和握拍的动作就是自然而然的了.

Notice the relation between the palm of the hand and the racquet face at contact.

注意接触时手掌和网拍面之间的关系.

Training for greater hitting power and increased racquet speed has never been easier.

增加击球力量同时提高挥拍速度的训练一直以来是非常困难的.