allof和ofall的用法区别
all of 就是“全部、同一”
All of them are students.
他们全部是学生。
of all就是“所有……的……”
例句
She of all people should know the answer to that.
在所有的人中，唯有她最应知道那个问题的答案。
First of all we must identify the problem areas.
首先我们必须找出问题所在。
Health care must be at the service of all who need it.
医疗保健机构必须为所有需要者提供服务。
She had the most money of all of them.
在这些人当中，她最有钱。
These are trying times for all of us.
对我们所有人来说，这是最难熬的时期。
