| 51. | foundation work |
| 基础工程
|
| 52. | an unstable foundation |
| 不牢固的基础
|
| 53. | a well-laid foundation |
| 牢固的基础
|
| 54. | the upheaval of society from its very foundation |
| 动摇社会基础的大动乱
|
| 55. | on the foundation |
| 由基金会维持的，领取基金会提供的奖学金[薪金]的；以…为基础
|
| 56. | be built on a solid foundation |
| 建立在牢固的基础上
|
| 57. | since the foundation of the paper |
| 从这家报纸创刊以来
|
| 58. | suspicions with no foundation in fact |
| 没有事实根据的怀疑
|
| 59. | a foundation for research |
| 研究机构
|
| 60. | the foundation (s) of a house [dam] |
| 屋[坝]基
|