hurdle: a problem or difficulty that you must deal with before you can achieve something

jump over/clear/overcome pass hurdle

翻译下面的句子：

中国学生申请赴美留学面临的一大障碍是托福考试。 

A big hurdle that Chinese students who wish to study in the US face is TOFEL.

（参考翻译：A big hurdle that Chinese students who wish to study in the US face is TOEFL. 或 To get admitted to US colleges, Chinese students have to clear a difficult hurdle: TOEFL, an English language proficiency test.）