VOA慢速英语:Chinese Students Flock to US High Schools in Soaring Numbers

短语讲解：

1. She grew up in Tianjin, a city of 14 million people on China's east coast.

grow up 向上生长; 长大
例句：A little trade began to grow up. 
小生意开始兴隆起来。 

2. The people here are really nice, and we say ‘hi' to each other, even though we don't know each other.

each other 互相，彼此
例句：Let them reinforce each other.
让它们二者互相补充。

3. This method of learning through memory exercises uses up a lot of time.

a lot of 许多的; 诸多
例句： He is a man with a lot of experience under his belt. 
他是个阅历很深的人。 

4. It can keep students from taking part in sports or interest groups.

take part in 参与
例句：Are you going to take part in the first experiment? 
你们会参与首次实验吗? 

5. Many students in their home country worry about this difficult test.

worry about 担心
例句：Don't worry about being late. It's fine. 
别为迟到担心了 没有关系。