可作及物动词也可作不及物动词。
1、decline作为不及物动词v.i.的用法
To bend or lean downward; droop.
弯下；低垂；下垂。
例句： The sun declined toward the west.
日已西斜。
To draw to a close; become weak.
接近终了；萎缩；变弱。
例句： His health is declining.
他的健康日渐衰弱。
To turn aside; deviate from or as if from a straight course.
偏转；入歧路。
To refuse.
辞谢。
例句： He was invited, but declined.
他曾被邀请，但已谢绝。
2、decline作为及物动词v.t.的用法
To refuse.
拒绝。
例句： He declined the invitation with thanks.
他婉谢邀请。
To bend downward; depress.
向下弯；压下。
To inflect with declensional endings, as a noun, adjective, or pronoun.
【文法】使(名词、形容词或代名词的)字尾变化。
