needn't是等于don't need to还是don't need.为什么?“你不必为他的学习担心”是you needn't to worry

needn't是等于don't need to还是don't need.为什么?“你不必为他的学习担心”是you needn't to worry
“你不必为他的学习担心”是you needn't to worry about his study还是you needn't worry about his study?
英语人气:690 ℃时间:2019-10-17 05:44:04
优质解答
don't need to中的need是实义动词
needn't中的need是情态动词
没有don't need.
所以是you needn't worry about his study.
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