| 51. | a naval base |
| 海军基地
|
| 52. | an air base |
| 空军基地
|
| 53. | establish, set up a base |
| 建立， 设立根据地
|
| 54. | the base of a pillar, column, etc |
| 柱基等
|
| 55. | the base of a triangle, pyramid, etc |
| 三角形的底边， 角锥体的底面等
|
| 56. | base of alcoholic drinks, also used as a fuel or solvent |
| 乙醇
|
| 57. | a crusty pizza base |
| 形成脆的硬皮的意大利烤饼的底部
|
| 58. | an army cut off from its base |
| 与基地失去联络的军队
|
| 59. | acting from base motives |
| 从卑鄙动机出发的行动
|
| 60. | base coin |
| 搀有贱金属的硬币
|