Arrows would continue to fly forward forever in a straight line were it not for gravity, which brings them down to earth.
要不是重力使箭掉落地上，它将会一直沿直线往前飞行。
Then the wise man took a piece of paper and drew a straight line down the middle.
然后，智者拿出一张纸，在中间画了一条直线。
The horse starts out in a straight line and then it hops off on a diagonal.
马从一条直线出发，然后沿着对角线跳跃。
We need to be careful with the idea that artistic development occurs in a straight line, from simple to complex representations.
我们需要注意这个观点，即艺术的发展是在一条直线上发生的，表现形式从简单到复杂。
British scientists have discovered that the gigantic female turtles can swim for thousands of miles in a perfectly straight line.
英国的科学家发现，巨型雌性龟能在一条完全的直线上游行上千英里。
Pilots from different countries understand body signals if they have the correct training. When you wave your arms up and down in a straight line, it means "yes".
如果接受了正确的训练，来自不同国家的飞行员都能理解身体信号。当你沿一条直线上下摆动手臂时，就表示“是”。
It traces an arc, not a straight line, as income increases.
当收入增高时，收入和身高关系呈弧形，而不是直线。
Two others were able to see the sun - and so kept going in a straight line.
另外两名成员可以看到太阳——因此他们始终沿着直线行进。
This is why a person may walk in an arc when he sets out in a straight line.
这就是一个人在出发时本来是想走的直线，结果却走成了一条弧线的原因。
If three of "Your Numbers" appeared on a board in a straight line, you'd won.
如果“你的数字”中有三个出现在其中一张牌的一条直线上，你就赢了。
You'll need to learn to draw a straight line before you can paint the Mona Lisa.
在你可以画蒙娜丽沙以前，最起码你应该学会画直线吧。
But, let me put in all the points at once, because they all lie on a straight line.
但是，假设我一下子放置所有的点，因为他们都在同一条直线上。
Of course, if you are moving in a straight line, then the two notions are the same.
当然，如果是做直线运动，这两种概念是一样的。
Use scissors to trim hair around the ears and back of the neck into a straight line.
用剪刀将耳朵和脖子后面的头发剪成直线。
It's found those four points, and it's connected them, each point by a straight line.
它找到这个点，连接它们，每两个点之间都是直线。
We do not know whether present trends will continue in a straight line, to be sure.
确切地说，我们还不知道目前的趋势是否会一直继续下去。
Well, if there is no gravity, this term doesn't exist because that's this straight line.
假设重力不存在，这一项是没有的,这就完全是一条直线。
If you zoom into the curve sufficiently, then it looks more and more like a straight line.
如果你充分地放大这曲线，它看起来就像一条直线。
I have a motion of an object along a straight line we'll call that one-dimensional motion.
假设有一物体，沿直线运动，我们把它称为一维运动。
A body can more uniformly and in a straight line, there being no cause to change that motion.
如果没有改变物体运动的原因，那么物体将作匀速直线运动。
Keeping your elbow under your shoulder, push yourself up until your body is in a straight line.
以肘部力量支撑肩部，身体向上用力，使身体形成一条直线。
If it is to travel in a straight line, the wheels on both sides have to be of exactly equal size.
那么，你就会知道小汽车几乎很少顺着直线跑，那么它左右两边的车轮的大小必须是正好绝对相等的。
To conceptualize this, imagine you're traveling across the Earth in a straight line, heading east.
为了更直观地理解上述内容，可想象一下你正在以直线方式向东穿越地球。
There are many ways to travel from Point a to Point b, and invariably it's not in a straight line.
从一个地方到达另一个地方有很多路线，而且常常并不能直达。
Now, I'd better make the surface of my water a straight line, otherwise I'm going to get in trouble.
这里我最好把水面画成直线，否则会有一点小麻烦。
What more proof is required that history moves in a straight line than the eclipse of every U.S. rival?
这便更充分地证实了他们的信念，美国的历史是沿着直线前进的。任何对手在他的前面，只能变得暗淡无光。
That move along the unit circle to the diagonal, and then I move back to the origin in a straight line.
然后沿单位圆的圆弧走到对角线处，接着这直线回到原点。
For example, you can go on a straight line from the origin to that point. That would be slightly easier.
比如，你可以沿直线，从原点到这点，这会简单些。
As you deepen the bend of the knees, maintain a straight line from the top of your head to your tailbone.
当你加深双膝的弯曲幅度是，保持头顶到尾骨一条直线.
Get your partner to lie in this position and look at their spine and neck - they should be in a straight line.
让你的伴侣以此睡姿躺好，观察他们的脊柱和颈部——它们应当是在同一直线上。
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