welfare n.福利，安宁，福利事业
He is quite a figure in welfare economics.
vote n.投票，选票
veto n.否决，禁止，否决权;vt否决，禁止
The president vetoed against the bill.
rejection n. 拒绝
embargo n.禁止出入港口，禁运
The goveronment issued an embargo on the sale of computers to unfriendlynations.