甜心小葡萄499
1.他学习很不认真，所以每次考试都以失败告终。 He studies carelessly,so he (fail)to pass the exam. 2.尽管困难重重。 (Although)all the difficulties. 3.十九世纪 19Century 4.他步行到学校用了半个小时。 He(will take)half an hour(to reach) school.
爆米花糖糖
没有为什么，这就是一固定搭配，相当于汉语中的成语。odds在这里就是一个以s结尾的词语，意思是“机会”、“优势”。另外，against all odds 应该是“不顾一切”的意思，against all the odds才是“尽管有极大的困难”、“尽管极为不利”。
健健康康。
Athough there were many difficulties, the climbers reached the top of the mountain successfully.
queenwendy
He finnaly managed to pass the exam in spite of a lot of difficulties .manage 本身就有经过努力最终干成了某件事情的意思，所以就不用加上“成功”了！
