needn't [ˈni:dənt] 动词
needn't = need not, need
I. need [ni:d] 名词
1. need no pl (requirement):
2. need no pl (necessity):
3. need (yearning):
4. need no pl (requiring help):
II. need [ni:d] 动词 trans
1. need (require):
2. need (must):
III. need [ni:d] 动词 助动词
1. need 英 (must):
2. need 英 (didn't have to):