Airport security 机场安检新规
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文字稿：
Sniffer dogs and x-ray scans are normal parts of airport security.
Now, laptops and mobiles will come under greater scrutiny.
US transport officials have ordered some airports to intensify the screening of electronic devices.
If it doesn't power up, it doesn't fly, they say.
So before you take off, make sure you've charged your phone.
Vocabulary 词汇:
sniffer dogs 嗅探犬
scrutiny 仔细的检查
intensify 加强，强化
power up 开机启动
charged （给手机）充了电
