手机带给人们最大的便利就是可以随时随地保持通话，而这样的便利同时也早就了一批耳朵粘着手机不放的“手机通话狂”。到了智能手机时代，自然就发展成了无时无刻不在看手机的“低头族”(phubber)了。
OCUD (Obsessive Cellphone Use Disorder) describes a person who continually talks on their cellphone or check updates on mobile apps in public, while driving, checking out, or eating in a restaurant.
OCUD(全称Obsessive Cellphone Use Disorder，手机过度使用症)指一个人无论开车、出门或是在餐馆吃饭都一直在用手机打电话或者不停查看手机app上各种更新的状态。
For example:
I wish that lady would get off her cellphone and watch the road. Gosh, she must have OCUD or something.
我真希望那位女士能放下手机看着点路。天啊，她一定得了手机过度使用症啥的。
