vt.

1. 抑制；阻挡
   The dam was too weak to withhold the pressure of the rising water.

   水坝不够牢固，抵挡不住上涨的水的压力。

2. 不给；保留[（+from）]
   Visas were withheld from some members of the delegation.

   代表团的一些成员被拒发签证。

   He's withholding his approval.

   他不肯同意。

3. 不吐露，隐瞒[（+from）]
   The judge suspected the witness was withholding information.

   法官怀疑见证人在隐瞒情况。

vi.

1. 克制，自制[（+from）]

v.

1. refuse to give (something due to or desired by another).
2. suppress or restrain (an emotion or reaction).