趣味青春英语电台 第311期:Run amuck

 Idiom:

Run amuck( go crazy )

Hit the book：

Nearsightedness

Myopia

Prevalent

Contact

Clinical trial

Progression

Dose

Ophthalmology

Regress

Lots of people seem to need glasses these days. That's because nearsightedness, or myopia, is becoming increasingly prevalent around the world. More than 40 percent of Americans are nearsighted, up from just 25 percent in the 1970s. In developed Asian countries, that rate is even higher with nearly 90 percent of children developing myopia.