| 61. | publish a new series of readers for students of English |
| 出版一套新的英语学习读物
|
| 62. | batteries connected in series |
| 串联电池
|
| 63. | bring out a new series of children's books |
| 出版一批新的儿童读物
|
| 64. | a series of lucky accidents |
| 一连串意想不到的好事
|
| 65. | a TV series of twenty episodes |
| 一部20集的电视系列片
|
| 66. | a series of new and curious experiments |
| 一系列新奇的试验
|
| 67. | by a series of maneuvers |
| 采用一系列策略
|
| 68. | launch out into a series of new experiments |
| 着手进行一系列新的实验
|
| 69. | a series of unfair practices |
| 一系列不公正的做法
|
| 70. | parallel [ series ] connection |
| （电路的）并联[串联]
|