You'll be glad to hear that Bill is alive and kicking.
比尔现在精神饱满,你听了一定很高兴。
What I have done is due to patient thought.
我的成就是由于坚忍地思索。
As a shipbuilder, Cockerell was trying to find a solution to the problem of the wave resistance which wastes a good deal of a surface ship's power and limits its speed.