1. You can describe various situations or conditions where you find using a computer necessary or beneficial. 2. Consider mentioning work, study, entertainment, communication, or any specific tasks that require a computer.

1. 你可以描述各种情况下使用电脑是必要或有益的。 2. 考虑提到工作、学习、娱乐、沟通或任何需要电脑的特定任务。