释义：
“hurdle”是可数名词，本意是“栏架”，常被引申义是“障碍”，常见、好用、形象。当我们想表达“克服XX障碍”“解决XX问题”时，除了使用 problem、difficulty、obstacle 外，还可以使用 hurdle。
例句：
Life is all about jumping over one hurdle after another and keeping moving on.
When Didi, a Chinese cab-hailing app, first started, it had to overcome the regulatory hurdle.
翻译：
中国学生申请赴美留学面临的一大障碍是托福考试。
TOFEL is the main hurdle that Chinese students face when they apply to study in America.
参考翻译：A big hurdle that Chinese students who wish to study in the US face is TOEFL.
To get admitted to US colleges, Chinese students have to clear a difficult hurdle: TOEFL, an English language proficiency test.
搭配：
big, difficult 大障碍；难关
main, major 主要障碍
face 面临障碍
clear, jump over, overcome, pass 清除障碍；跨越障碍；渡过难关
造句：
College Entrance Examination is the first major hurdle that we face when we are high school students.
The freezing weather in Poland is perhaps the difficult hurdle that I have to face.
I always have a sense of achievement when I clear each big hurdle.