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”。
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。
Stand side-on to a bench with your closest hand and knee on the bench, back parallel to the floor (neck in line) and a dumbbell in your other hand, arm hanging straight down.
侧立于练习凳一侧，靠凳一侧的手与膝支撑于凳。背部与地面平行(与颈部成一条直线)，另一侧手手持哑铃，手臂垂直悬于体侧。
The basic flow is a straight line down, while alternative flows are usually the loops going either back or forth.
基本流程是一条向下的直线，然而可选流程可以是向前或向后的循环线。
For more than 100 years the escalator has traditionally travelled either up or down and in a straight line.
100多年以来，传统电梯一直都是向上或者向下，沿着直线运行的。
Stroke quality is the degree to which we produce that all-important consistency, precision, and fluidity straight down the target line.
击球的质量就是我们能够多么稳定、精确、顺畅而直的把球打向瞄准线。
He becomes responsible for all down-the-line shots, including the straight drop, and must also cover the cross-court clear.
他负责所有的中场接球，包括直线杀球，也负责斜线的来球。
If you had looked down upon the solar system on August 14, you would have seen the sun, Earth and Jupiter making a straight line in space.
8月14日那天，如果从外太空俯瞰太阳系，太阳、地球和木星刚好形成一条直线。
PLUSES: the trick is begun with a clean, nose-down entrance from a Fade, and the roll-up is in a straight line.
优点：动作开始在由“飘”形成的清晰的机头向下的起点上，并且绕线动作完成在一条垂直线上。
That's the pain, cuts a straight line Down through the heart.
是疼痛，穿过心脏切下一道直线。
That's the pain, cuts a straight line Down through the heart.
是疼痛，穿过心脏切下一道直线。
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