He always begins his lessons with a warm-up exercise.
他讲课前总是先让学生做预备练习题。
The exercises can be fun and a good warm-up for the latter part of the programme.
这些练习很有趣，还可以为后面的课程做热身准备。
Let's do some warm-up exercises.
我们先做些热身运动吧。
Let's begin with a kind of warm-up sheet which we can anchor in these little drawings I've made.
让我们先来热一下身，把薄片固定在我画的这些小图里。
Outside the lab, he says, most people are unlikely to hold a warm-up stretch for longer than about 30 seconds.
他说，出了实验室，大多数人做热身拉伸运动不会超过30秒。
Here are some examples of warm-up activities.
这有些热身活动的例子。
This song has a nice steady beat that's good for a warm-up or cool down.
这首歌曲的节奏非常平稳，它对热身或者冷却非常好。
Don't forget to do a 5-10 minute warm-up before your next run or workout.
在下次跑步或锻炼前，别忘记做5至10分钟的准备活动。
If your muscles are still sore after your warm-up, try some easy stretching.
如果热身后肌肉仍然酸痛，试着做些简单伸展。
You'll feel less pressure to push it and you'll take the time to warm-up properly.
这样跑的时候也不会有太多压力，而且你能够利用这段时间彻底地热热身。
Though irrelevant for stationary applications, a rapid warm-up time is crucial for cars.
虽然快速预热时间对于固定应用无关紧要，但对于汽车来说却是至关重要。
Let's start with a 'warm-up' question: When did you start climbing and why? What drove you to it?
首先问个简单的问题：你是从什么时候开始攀岩的？为什么？是什么驱使你开始攀岩的？
You know these last few months when we've been expecting it to warm up a little bit?
你知道最近这几个月我们一直盼望天气能暖和一些吗？
The consensus among the world's scientists is that the world is likely to warm up over the next few decades.
全世界科学家的共识是地球可能在未来几十年中变暖。
You can improve an ice cream headache by rapidly rubbing your tongue across the roof of your mouth to help warm up things.
你可以通过快速地用舌头摩擦上颚来帮助食物变暖，从而缓解吃冰激凌时的头痛。
They may feel numb at first, but they should warm up a few minutes into your run.
他们可能开始是麻木的，但是跑步几分钟之后应该能暖和起来。
To warm up, the people began turning on electric heating units and the power supply broke down too.
为了取暖，人们开始用电加热取暖，导致电力供应也垮掉了。
Take a warm shower or bath to warm up your muscles beforehand, then lie on the floor and stretch.
先洗个热淋浴或者泡个热水澡来帮助你的肌肉热身，然后躺在地板上开始拉伸。
Unfortunately, most runners warm up and then stand around for a while before their races begin. They might as well not warm up at all!
然而绝大多数跑步者在比赛前热身后都站立停留一段时间，这样就可能完全没有热身。
Taking a warm bath or sitting by a fire or doing some exercise can also help the body warm up.
洗一个热水澡或者坐在炉火旁或做运动也可以帮助身体暖和起来。
Warm up with a 10-minute run to the base of a hill that has a steady (but not overly steep) slope.
花10分钟时间，跑到有些坡度(但不能太过陡峭)的小山脚下，当作一次热身。
For example, select 20 users randomly from 400 users to do both warm up and formal testing.
例如，从400个用户中随机地选择20个用户，以完成初始化工作和正式测试。
For instance, the faster you'll be running or racing, the longer and more thoroughly you should warm up.
例如，如果想在比赛中跑出速度，那么在热身的时候必须准备得更长和更彻底。
To warm up for swimming, swim slowly at first and then pick up the tempo as you're able to.
为游泳热身，那就开始时慢慢游然后提高速度到你能够达到的水平。
Failing to properly "warm up" the JVM can result in a significant skewing of performance measurements in two ways.
如果没有让JV m适当地“热身”，那么J VM可能在两个方面导致性能度量上的偏差。
We put hammocks in our practice room and used them as part of our warm up.
我们在练舞房中悬挂起缎带，并将之所谓暖身运动中的一部分。
If you exercise in the morning it is important to stretch and warm up your muscles.
如果要早晨锻炼，那么事先热身和拉伸肌肉非常重要。
If you exercise in the morning it is important to stretch and warm up your muscles.
如果要早晨锻炼，那么事先热身和拉伸肌肉非常重要。
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