短语讲解：

1.Just last year, the number of international students at American colleges topped one million for the first time ever, according to the Institute of International Education.

according to 根据，按照; 据…所说; 如; 比照
例句：According to her, grandfather called at noon.
据她说,祖父在中午打来电话。

2.“There have been cases, again isolated, but I think we feel safe and feel like we have a place at the University of Texas, Dallas that always has been supportive of diversity,”

feel like 摸起来像是…，有…的感觉; 想要
例句：I feel like a newborn baby.
我感觉像是个新生的婴儿。

3.Some colleges open up centers to help international students with their study.

open up 打开; 开发
例句：They decided to open up an office in town.
他们决定在市区设立一个办事处。