| 61. | words of most frequent occurrence |
| 出现得最频繁的词
|
| 62. | a word of very frequent use in America |
| 一个在美国频繁使用的词
|
| 63. | a frequent visitor at a library |
| 图书馆的常客
|
| 64. | a frequent visitor to the inn |
| 这家客栈的常客
|
| 65. | books worn with too frequent handling |
| 因使用过多而破损的书籍
|
| 66. | habitually frequent the club |
| 习惯地经常出入于该俱乐部
|
| 67. | intermittently frequent |
| 断断续续地经常出入于
|
| 68. | persistently frequent |
| 坚持常去
|