n.

1. 需要；必要；需求；要求[S][（+of/for）][+to-v]
   We have no need to be afraid of them.

   我们不必怕他们。

2. 必要之物；需求[P1]
3. 贫穷；困窘；危急[U]
   My neighbors helped me in my time of need.

   我的邻居在我困难的日子帮了我忙。

vt.

1. 需要，有……必要[W][+to-v][+v-ing][O2][O4][O7]
   The garden needs watering.

   花园该浇水了。

   I don't think you need to worry about this.

   我认为你不必为这事担心。

   They need our help.

   他们需要我们帮助。

vi.

1. 生活穷困

v.aux.

1. （多用于疑问句和否定句）需要，必须
   Need you go so soon?

   你需要这么早走吗？

   You needn't trouble about that.

   你不必为这费事了。

v.

1. require (something) because it is essential or very important rather than just desirable.
2. [usu. with neg. or in questions] expressing necessity or obligation:
   need I say more?
3. archaic be necessary.

n.

1. circumstances in which something is necessary; necessity.
2. a thing that is wanted or required.
3. the state of lacking basic necessities such as food, or of requiring help.

adv.