It may be difficult to start high school.

上高中可能很难。

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This summer has passed, really, hard, hey, leave the impression's nice to start high school life!

这个夏天过去了，真的，好不容易，哎，放假的感觉真好，开始高中生活喽！

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This article gives brief introduction to ship's auxiliary propulsion device (APD), and describes how to start high powered motor and make good arrangement under APD working mode.

本文对船舶辅助推进系统(APD)作了简略的介绍，并对于在APD工作模式下，如何顺利起动大功率电机，以及如何成功接排进行了详尽的说明和分析。

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A high burden of infectious diseases. Lack of provision of family planning allowing a women to decide when to start and end having children and how to space her children.

VOA: special.2009.10.19

we start high and go low, we're dealing with emission where we have excess energy that the electron's giving off, and that energy is going to be equal the energy of the photon that is released and, of course, through our equations we know how to get from energy to frequency or to wavelength of the photon.

当我们从高到低时，我们说的,是发射,电子有多余的能量给出，这个能量等于，发出,光子的能量，当然我们可以通过方程,从能量知道，光子的频率，和波长。

麻省理工公开课 - 化学原理课程节选

So we can think of a third case where we have the 3 s orbital, and in the 3 s orbital 0 we see something similar, we start high, we go through zero, where there will now be zero probability density, as we can see in the density plot graph.

第三个例子那就是,3s轨道,在3s轨道里，我们看到类似的现象,开始非常高，然后穿过，这里，概率密度是0，就像你们在概率密度图里看到一样，然后我们到负的。

麻省理工公开课 - 化学原理课程节选

Engineering salaries tend to start high, but there is not huge growth on an annual basis.

FORBES: Most Lucrative College Majors

Once they are educated in America, China tries to bring them back to start high-tech businesses in their home country.

FORBES: Can China Eclipse the U.S. on Innovation?

They also include serendipitous interactions between such inner strengths and happenstance, such as with a capable 8th grade student scared to start high school who met a new neighbor who is a popular senior at the high school he will be attending.

FORBES: There Are No Silver-Bullets in Education Reform