翻译：中国学生申请赴美留学面临的一大障碍是托福考试。
TOEFL is a hurdle of studying in America for Chinese students.
场景：外地工作
造句：Working out of town must overcome mental burdle of homesickness.
场景：克服诱惑
造句：Lure of Internet is the biggest burdle of studying when a person is alone.
