require
单词辨析：
既可指需要某事物，也可指需要某人做某事，常可与 need 换用。
Children want/need plenty of sleep.
儿童需要大量的睡眠。
The house wants/needs repairing/to be repaired.
这房子需要修葺。
Do you want/need me to pick you up at the station?
你要我到车站接你吗？
指为成功做成某事而需要某事物，其主语通常为事物，而宾语多为抽象名词。
Success demands persistence.
成功需要坚持。
The task demands professional knowledge.
这项任务需要专业知识。
An important meeting demanded his presence.
一个重要会议需要他出席。
最普通用词，指需要必不可少的东西或需要做某事，强调所需之物或需做之事的重要性。
The children need water and food.
孩子们需要水和食物。
The car needs repairing.
汽车需要维修。
I need to know what time it is.
我得知道现在几点了。
词义同 need，常可换用，但语气较弱。
The mastery of a language requires/needs painstaking effort.
要学好一种语言，必须下苦工夫。
This letter requires/needs to be answered at once.
此信需要立即回复。
These babies require/need careful looking after.
这些婴儿需要细心照看。
相关例句：
Their achievements have already been analysed in depth and do not require further discussion.
他们的成就已经全面分析过了，无需再议。
The rules also require employers to provide safety training
这些规定还要求雇主提供安全培训。
If you require further information, you should consult the registrar
如果需要进一步了解信息，请咨询教务主任。
Two major areas in which mentally retarded children require help are memory and attention.
智障儿童主要是在记忆力和注意力这两方面需要帮助。
Good customer relations require courtesy, professionalism and effective response.
良好的客户关系需要做到礼貌、专业，并提供有效的回复。
Then he'll know exactly what's required of him.
到那时他就会确切地知道对他的要求是什么了。