1.up to 多达

例句：I can take up to four people in my car.
我的车能载4个人!(0(Cv3Gs&x。

2.arms sale 武器销售

例句：I think the senator will packwood on the arms sale.
我认为这位参议员会改变对武器销售案的立场J+esCrj~@X8m。

3.national defense 国防

例句：He has been stepped up to the Ministry of National Defense.
他已被提升，到国防部去工作了*)IZXZ9KUdREj6IxRL。

4.coalition operation 有助于

例句：Various factors contributed to his downfall.
多种因素的作用导致了他的倒台3fg9Y&|NMDQ3#CY+Hv~。