Try sewing a tennis ball into the back of your pyjama top. This will certainly stop you from sleeping on your back!
在你的睡衣后背那缝上一个网球,这样你就不会仰着睡啦。
Here「s a simple tip that will help you master this shot: Practice hitting low volleys with a tennis ball placed under your hitting arm.
这里有一个小窍门帮助你掌握这种击球方法:夹一个网球在你击球胳膊的腋下来练习低位截击。
It」s a chunk of brain matter 「roughly equivalent to a tennis ball in size,」 McAuliffe says.
「这是一大块的脑浆大致相当于一个网球的大小。」麦考利夫说。
We have here a trajectory of a golf ball or a tennis ball in 26.100.
假设这是一条属于教室里,某高尔夫球或网球的运行轨迹。
I have here a tennis ball and I can bounce this tennis ball, I can throw it down.
我这里有个网球,要是把它对着地面扔,它会弹起来。
Use pillows to prop yourself on your side, or attach a tennis ball with a rubber band to the back of a T-shirt to keep from turning over on your back.
用枕头支撑着保持侧身躺,或者用橡皮筋在你体恤衫的后面系一个网球来防止你仰面躺着。
A recent study shows the negative impact that noise can have when one is attempting to predict where a tennis ball will land.
最近的一项研究显示了,当一个人试图预测网球落点的时候,噪音将对其有消极的影响。
He observed somebody hit a tennis ball and wondered about the paths of projectiles.
他看到别人打网球就会思考网球的行进路线。
Suppose I take a tennis ball 100 and I throw up a tennis ball in 26.100.
比如,我拿了个网球,把它向上抛26。
(Think of what would happen if you tried to slow down a skateboard with a tennis ball on it).
试想一下,你用网球使滑板减速是什么效果。