The audience was so quiet you could have heard a pin drop.

观众安静得连针落地的声音也听得见。

《牛津词典》

"It was dramatic, watching people who do like parks and they get to hear London's voice for the first time," Crossman said. "You could hear a pin drop."

“看着那些热爱公园的人们平生第一次听到伦敦的声音，这实在是太激动人心了，”可绕斯曼说，“现场静得你都能听见别针掉落的声音。”

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Pin open the Newly Created pages pane and drag and drop the necessary pages to the Web site navigator.

打开Newly Created Pages窗格并将必要的页面拖拽到Web站点导航栏上。

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If you get out of the range of the GPS tracking system, it will help locate your item on a map with its unique last-seen map pin-drop feature.

FORBES: Uh Oh: I Lost My iPhone 5. Now What?

Proximo delivers a unique way to track multiple valuables with a last-seen map pin-drop feature, an active proximity dashboard and extended battery life on both its Fob and Tag.

ENGADGET: Kensington wants you to be very afraid of losing your iPhone, buy its $60 Proximo system

It might take a while before our on-the-go conversations are pin-drop clear, though.

CNN: Coming to your phone: High-definition voice