1. Who studied 301 men and women aged 70 and older with at least one risk factor for falling, such as muscle weakness or use of certain medicines.
    她调查了301名70或70岁以上的男女，他们都至少有一种导致摔跤的风险因素，如肌肉无力或使用某些药物等。

2. It's hard to avoid being seen on the DMV computer screens, but there are ways to keep a low profile in other areas.
    很难使自己的信息不出现在DMV的电脑屏幕上。但还是有办法在其他方面使自己的情况少为人知。

3. For this reason there is no risk to the customer in the practice, adopted by banks, of printing the customer´s name on his cheques.
    因此，某些银行已采用把储户印在支票上的作法。这种做法对储户毫无风险。