/-tə/ a final demand or statement of terms, the rejection of which will result in retaliation or a breakdown in relations
最后通牒;哀的美敦书
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the British government issued an ultimatum to Hitler to cease invasion of Poland .英国政府向希特勒发出停止侵略波兰的最后通牒。
"mid 18th cent.: from Latin, neuter past participle of