Simonerequired
的有关信息介绍如下：
1.VERB需要；有赖于If you require something or if something is required, you need it or it is necessary.2.VERB要求；命令；规定If a law or rule requires you to do something, you have to do it.3.PHRASE必读的If you say that something is required reading for a particular group of people, you mean that you think it is essential for them to read it because it will give them information which they should have.
