unannounced中文什么意思

adj.
未经宣布的；未经通报姓名的。

例句与用法

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The principal keeps students and teachers on their toes with unannounced visits to the classroom .
校长经常事先不通知地去听课，使得学生、教师都不敢怠慢。
Little as the vander luydens encouraged unannounced visits, he could count on being asked to dine .
尽管范德路易登家不大欢迎不速之客，但还是有可能请他吃顿饭。
Ladies don ' t go calling on gentleman unannounced
女士不会不请自到地来找绅士的。
He came into my mother ' s birthday party unannounced
他突然来到，我母亲的生日晚会
Only very close friends drop by unannounced
他们或许会邀请大家到客厅吃点心、喝茶或咖啡。

形容词

without warning or announcement; "they arrived unannounced"; "a totally unheralded telegram that his daughter...died last night"- M.A.D.Howe
同义词：unheralded, unpredicted