I go swimming every day in order to keep fit.
我每天游泳以保持健康。
Some teachers find it difficult to keep their classes in order.
有些教師覺(jué)得難以維持課堂秩序。
In order to get a complete picture, further information is needed.
為掌握全面情況，還需要詳細(xì)資料。
State your reasons in order of importance.
按重要性順序陳述你的`理由。
I must put my affairs in order.
我必須整理整理我的事務(wù)。