The sudden appearance of a security guard caused them to drop the money and run.

保安人员突然出现，他们丢下钱就跑了。

《牛津词典》

When Ms Sanchez began blogging, Cubans were not allowed into tourist hotels, but she was able to evade suspicious security guards thanks to her light-skinned appearance and ability to speak German.

当桑切斯女士开始写博时，古巴民众还无法进入旅游饭店，而桑切斯的淡肤色和德语能力帮她躲过了多疑的警卫。

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Now, major cities in the United States, some commercial architectural appearance looks very common, but enter it, you will know that here is producing some and security needs related products.

如今，在美国各大城市，一些商业建筑外表看起来很普通，但进入其中，就会知道这里正在生产某种与安全需要有关的产品。

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Given his stocky appearance and hairstyle in the security-video footage, Mr. Burkhart was nicknamed "Meatloaf Seagal" by users of the microblogging site Twitter, a reference to the singer Meat Loaf and action-movie actor Steven Seagal.

WSJ: Police Make Arrest in Los Angeles Fires

She insisted that "people were trying in real time to get to the best information, " and that her focus was on looking ahead on how to improve security rather than revisiting the talking points and Rice's television appearance.

NPR: Feisty Clinton: US Strengthening Embassy Security

Oren has repeatedly praised Obama for his supposedly firm support for Israel and commitment to Israel's security - most recently in an appearance on Fox News on Wednesday.

CENTERFORSECURITYPOLICY: Netanyahu, Obama's newest prop