be needed for sth
表示目的或用途。
Water is needed for all life.
所有生命都需要水。
需要的；必需的
必要的；必需的。
必要的；必需的。
Necessary; being required.
After working all day, a short break was badly needed.
工作了一整天后，非常需要短暂的休息。
用法提示："needed" 作形容词修饰 "break"，表示“所需的”。
The needed repairs to the old bridge will begin next month.
这座旧桥所需的修复工作将于下个月开始。
用法提示："needed" 作形容词修饰 "repairs"，表示“所需的”。
She gave him the needed advice to solve the problem.
她给了他解决问题所需的建议。
用法提示："needed" 作形容词修饰 "advice"，表示“所需的”。
表示目的或用途。
Water is needed for all life.
所有生命都需要水。
表示为了达到某个目的需要某物。
More research is needed to find a cure.
需要更多研究来找到治疗方法。
作为定语修饰名词。
She provided the needed support.
她提供了所需的支持。
grammar · medium
易错句子This tool is need.
正确表达This tool is needed.
形容词'needed'必须加-ed后缀；中文'需要'可作动词或名词，学习者易遗漏-ed。
grammar · medium
易错句子I am needed to finish the work.
正确表达I need to finish the work.
表达人的主观需求应用动词'need'，而非形容词'needed'的被动结构；形容词'needed'通常修饰事物。
‘needed’侧重具体需求，而‘necessary’指一般性的必要
‘needed’指主观需要，而‘required’强调客观规定或强制要求
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