| 1. | I have a furlough every three years .
我每三年休假一次。 |
| 2. | If one-third of the stars are single stars with planets, then planetary systems are born, on the average, every three years .
如果这些恒星中有三分之一是拥有行星的单星，那么平均每三年就会诞生一个行星系。 |
| 3. | Yes , less frequent than once every three years
有，少于每三年一次 |
| 4. | All aici certifications shall be renewed every three ( 3 ) years
所有aici资格认证必须每三年更新一次。 |
| 5. | Yes , once every three years
有，每三年一次 |
| 6. | Registered businesses may renew their registration certificates either annually or once every 3 years
已登记商号可选择每年或每三年换领商业登记证。 |
| 7. | Until recently , such meetings had been held every third year ; now they are held every other year
这类会议以往每三年举行一次，最近已改为每二年开会一次。 |
| 8. | All certification levels will be required to earn 2 . 4 ceus every three ( 3 ) years in order to maintain certification
所有级别的资格认证都要求每三年获得2 . 4个持续教育积分（ ceu ） 。 |
| 9. | The periodic 30 percent reduction in minimum feature size is probably now going to occur every three years instead of every two
晶片电路的最小特徵尺寸将每三年缩小30 % ，以前是每两年。 |
