decline:v.to become less or worse,to decrease “减少，下降，衰退” declining prices价格下降； declining health健康每况愈下 介宾短语为on the decline decline politely refuse to accept or do something “婉言谢绝” decline an invitation/an offer/a proposal,etc. 婉言谢绝邀请/馈赠/建议等decline: v. to become less or worse, to decrease “减少，下降，衰退” declining prices价格下降； declining health健康每况愈下 介宾短语为on the decline decline 还指politely refuse to accept or do something “婉言谢绝” decline an invitation/an offer/a proposal, etc. 婉言谢绝邀请/馈赠/建议等