| 71. | the Air Force, the country's first line of defense |
| 空军，国家的第一道防线
|
| 72. | construct new defense lines along the border |
| 沿边境构筑新防线
|
| 73. | call for massive increases in defense spending |
| 要求大量增加防务经费
|
| 74. | defense industries |
| 国防工业
|
| 75. | adopt new guidelines for the national defense |
| 采取新的国防指导方针
|
| 76. | for defense purposes |
| 为了防御的目的
|
| 77. | a national defense plan |
| 国防计划
|
| 78. | the chief defense counsel |
| 首席辩护人
|
| 79. | air defense |
| 防空
|
| 80. | make a brave defense against the invaders |
| 勇敢地抵御入侵者
|