1. It is: If a year´s number can be divided by 4, it won´t be a leap year if it can be further divided by 100.
    这就是：如果某一年的数字被4除尽后还能被100除，那么这一年就不是闰年。

2. In Wolf's study, published in May 1996, 215 seniors aged 70 to 96 were divided into three groups.
    在沃尔夫1996年5月发表的研究中，215名70至96岁的老人被分成三组。

3. It seems experts are as divided as ever over the issue of which is more important, environment or genetics.
    哪个更重要，环境还是遗传？对这个问题似乎专家们一向都有分歧。

4. From now on, my life will be divided into two parts, with the line drawn by that train.
    从今以后，我的一生将被划分成两个部分，这列火车的行程划出了其中的分界线。

5. Finally, they divided the room in two and gave up on oral communication, communicating primarily through short notes.
    最后她们将房间一分为二，彼此不再讲话，主要通过写便条进行交流。