The requirement to enter information that only users would know - such as the identity of their friends - can help stop unauthorised access should their passwords somehow become compromised.
要求登录者输入仅账号拥有者才知道的好友信息等能有效地减少未获授权的登录，即使账户密码不幸被泄露。
It is very difficult for people to find useful information in the world of tremendous amount of information. To satisfy the requirement of users, the personalized information services appear.
在浩如烟海的信息世界中，人们寻找有用信息存在着很大的困难，为了更好地满足用户的需要，个性化信息服务便产生了。
The quality of information virtually provided by accounting can hardly meet the requirement of users because of many restrictive factors.
受多种因素的制约，会计实际提供的信息在质量上达不到用户的要求。
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