1. Despite extensive efforts by many schools to make good roommate matches, unsatisfactory outcomes are common.
    尽管许多学校已做了广泛的努力来为学生安排合适的室友，但常常有不如人意的结果。

2. Most children have such a high ideal of their parents, unless the parents themselves have been unsatisfactory, that it can hardly hope to stand up to a realistic evaluation.
    除非父母自身不能令人满意，大多数孩子对父母估价过高，以致这种估价很难指望经受住现实的考验。