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Leaving the doors unlocked is an open invitation to burglars.

出门不上锁无异于开门揖盗。

《牛津词典》

Leaving your camera on the seat in the car is an open invitation to thieves.

把摄像机留在汽车座位上无异于开门揖盗。

《牛津词典》

you could leave your response to the invitation slightly open-ended by saying you're not sure.

你可以表示你不确定，开放性地回复这个邀请。

I don't know 课堂 - SpeakingMax英语口语达人

They've got the gardens open by invitation.

他们有花园，对受邀者开放。

快乐的休息日下午 - SpeakingMax英语口语达人

In today's Latin America, neglect of poverty and social programmes is an open invitation to populist outsiders.

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That's an open invitation for fishing expeditions for greedy trial lawyers, publicity-hungry pols, ambitious prosecutors and envious bureaucrats.

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Chick-fil-A Bowl president and CEO Gary Stokan sent an open invitation to DragonCon attendees for exactly that reason.

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