| 71. | beyond [out of] one's depth |
| 在水深没顶的地方；不能理解；力所不及
|
| 72. | from the depth of one's mind [heart ] |
| 从心底里，诚心地
|
| 73. | in depth |
| 广泛的[地]；彻底的[地]；深入的[地]；纵深的[地]
|
| 74. | organize defence in depth |
| 组织纵深防御
|
| 75. | develop in depth |
| 深入发展
|
| 76. | make a survey in depth of the conditions |
| 深入调查情况
|
| 77. | a study in depth of the poems |
| 深入研究这些诗歌
|
| 78. | in the depth of |
| 在…正中；在…深处
|
| 79. | in the depth of the country |
| 在穷乡僻壤；在内地
|
| 80. | in the depth of winter [night ] |
| 在隆冬[深更半夜]
|