And then the planet has to have the right surface gravity.
如此以来，这个星球表面就有一定的重力存在。
找到合适的路面。
These answers will never surface if you never ask the right questions.
如果你不能问正确的问题，永远也得不到正确的答案。
It's going to be tangent to the level surface, right?
它是与等值面相切的，对不对？
All right, it has the same normal vector as the surface.
它和曲面有相同的法向量。
It lies near the surface of the brain, just behind the right ear.
它靠近大脑表层，就在右耳后面。
On the surface, you are right.
从表面上看，你是对的。
Doubts are beginning to surface about whether the right decision has been made.
有人开始对所做的决定是否正确产生了怀疑。
On the right display, I have the control surface position display pulled up.
在右边的显示器上，我打开了控制面位置的显示界面。
Try to keep your head and torso right at the surface, with very little up-and-down-motion.
尝试保持你的头和躯干正好在水面下，只有很小的起伏波动。
So, they should be pretty close in terms of surface area, right?
它们的表面积应该很接近，对吧？
Place the left denim sole piece on to a flat surface, right side down.
将左脚牛仔布鞋底放平，正面向下。
But now scientists say they've spotted water right on the moon's surface.
不过科学家们目前说，他们就在月球表面发现了水。
But now scientists say they've spotted water right on the moon's surface.
不过科学家们目前说，他们就在月球表面发现了水。
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