Read the first and last few pages of each chapter thoroughly, because they often summarize the information.

认真阅读每个章节最开始和最后几页，因为他们经常总结了很多信息。

youdao

For the first few thousand feet above sea level the rate of pressure decrease is in the neighborhood of 1 inch of pressure for each 900 to 1000 ft.

在离海面几千英尺高度上(在拔海高度数千英尺以下)气压递减率大约是每900到1000英尺高度下降1英寸汞柱左右。

youdao

For the first few thousand feet above sea level the rate of pressure decrease is in the neighbourhood of 1 inch of pressure for each 900 to 1000 ft.

在离海面几千英尺高度上(在拔海高度数千英尺以下)气压递减率大约是每900到1000英尺高度下降1英寸汞柱左右。

youdao

The stations, each of which could handle up to 700 people, were besieged in the first few hours.

CNN: A VOTE FOR PEACE

Phillips' research shows that in the first few days of each month fatalities due to medication errors rise by as much as 25 percent above normal.

CNN: Don't be a victim of pharmacy errors

Because they are moving with respect to the Earth as well as to each other, observations of their movement over the next few years should prove beyond question that they are indeed the first partnered pair of black holes.

BBC: Dancing black hole twins spotted