如果我们以每小时产出来衡量大使的生产能力，计算公式的分母就应该是他或她的工作总小时数。
If we were to measure the ambassador's productivity in terms of output per hour, the denominator of that equation would simply consist of all the hours he or she worked.
飞行能力的另一极端——鹰隼的飞行速度每小时可达200英里(322千米)，却只能在短距离内抓住猎物。
At the other end of the spectrum, peregrine falcons can reach speeds of up to 200 miles (322 kilometers) an hour but only in short bursts to catch prey.
不过，你看不到外面，因为你正在时速达300英里每小时的磁悬浮列车上，列车靠来自核电厂的能力推动前进。
But you can't see outside, because you're underground, traveling 300 miles an hour on a maglev train alongside superconducting pipes transporting the energy from those nuclear plants.
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