by which means造句怎么写

Most persons, who write ill, do so because they aim at writing better than they can, by which means they acquire a formal and unnatural style.

"My ideas flow so rapidly that I have not time to express them -- by which means my letters sometimes convey no ideas at all to my correspondents."

It also discusses the major reasons behind China's capital flight and by which means the capital flight from China, we find capital flight in China even erode it's economy base and becomes a threat to China's financial stability.