decline的用法：decline作动词指有礼貌地谢绝，比refuse语气上要婉转些。decline后可跟不定式或动名词，但跟不定式比较普遍。decline的短语on the decline、fall into a decline。
decline的例句：My initial reaction was to decline the offer（我最初的反应是要婉言谢绝这个提议）；Support for the party continues to decline（对该党的支持继续下降）。
