英语翻译Although formality in business letter writing is rapidly

英语翻译
Although formality in business letter writing is rapidly giving way to a less conventional and morefriendly style,the layout or mechanical structure of a letter as it is called still follows a more or less set pattern determined by custom and not resulting form any deliberate plan.A good plan to make correct practice habitjual is to adopt one form of layout and to stick to it.