至于第五代的新式战斗机F - 22和F - 35，前者的最高速度为2.25马赫(比f - 15低)，后者是1.67马赫。

And the new 5th-generation fighters, the F-22 and F-35, have Max speeds at altitude of Mach 2.25 (slower than the F-15) and Mach 1.67.

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然而，在第五年，从一开始就报告有高度抑郁的人，腹部肥胖和BMI增长的速度要快于那些报告了更少抑郁症状的人。

However, the people who started out reporting high levels of depression increased in abdominal obesity and BMI at a faster rate than those who reported fewer symptoms of depression at year five.

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同样的，第五个方程序，中的速度同样，会随时间改变，因为这是椭圆形轨道。

Also that velocity, v, in that equation number five will also change with time because it's an elliptical orbit.

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