have the last word

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释义
有决定权
to make the final decision about something (usually + on )

例句
MR BATES：I say Mr Carson must have the last word on where he lives and works.(Downton Abbey)
贝茨先生：只有卡森先生自己对他的生活和工作有最终的决定权。（唐顿庄园）