These various courses all seemed insuperably difficult to the student .

这些课程对于学生来说好像太难了。

The force majeure and accidents called in this agreement means the external events that happened unforeseeably , inevitably or insuperably to one side or both sides , including floods , earthquake , epidemics , social events such as war , unrest and government control .

本协议所称不可抗力的意外事件是指不能预见，不能克服并不能避免且对一方或双方有重大影响的客观事件，包括但不限于自然灾害如洪水、地震、流行疾病等，社会事件如战争、动乱、政府管制等。