needful
adj. 必要的；需要的；贫困的，困苦的
n. 必须做的事；钱
例句
His last book, "Needful Things," was a retread of tired material.
他的上一本书《必需品》尽在重复些陈旧的内容。
《柯林斯英汉双解大词典》
The section of society most needful of such guidance is the young male.
最需要此类指导的社会群体是青年男性。
Thou should'st rest is indeed a needful thing, since thou must journey to the city presently.
您应该休息一下，这非常有必要，因为您不久就要到城里去了。
