Do you know anything about South American culture?
你了解南美洲的文化吗?
Not only did I forget my train ticket, but I also forgot my passport.
我不仅忘了带火车票,还忘了带护照。
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.