informal leader的用法和樣例：
例句
- Presidential spokeswoman Dana Perino says the informal discussions at the White House will focus on the peace process.
布什的發言人佩里諾說，兩位領導人在白宮舉行的非正式會談將著重討論和平進程。 - Mr.Zeng has a reputation as a canny political operator, and his willingness to observe an informal retirement age may help strengthen the precedent for other leaders.
曾一向被視為精明政治家，此番他自愿遵守黨內在非正式退休年齡上的潛規則或許有助于為其他領導人樹立一個良好的先例。
