But how did you lose your briefcase?

但你是怎么弄丢你的公文包的？

youdao

What if your projector blew a light bulb (and you forgot to bring a spare) or your briefcase was lost at the airport?

例如，投影仪上的电灯泡坏了（而你又没有带备用的），或者你的公文包落在机场了。

youdao

Avoid touching your face, hair or jewelry, or fussing with your briefcase. Keep any papers you want to show in your briefcase until it's time to take them out.

避免触摸你的脸、头发和首饰，也不要翻动你的公文包。除非到了该拿出来的时候，你应该把所有你要展示的文件都留在公文包里。

youdao

When you look in your briefcase or at your desk, does an iPhone stare back at you?

FORBES: Magazine Article

Kind of like trying to steer a Ferrari Testarossa at 100mph while fumbling through your briefcase for a cellular phone.

FORBES: Hook In and Hold On

Or does it fall into some other, less bomb-like category of gadget that can slip through security hidden in your briefcase?

FORBES: The iPad Flies Through Airport Security