参议院和众议院有很大的差异，参议员所面临的重新选举才每六年一次，而不是每两年一次。

The Senate marches to a different drum than the House does, with senators facing re-election only every six years, not every two.

youdao

现有6张交替用男名女名命名的飓风名单——某年“A”被冠以男名下次的就会是个女名了——每六年循环一次。

There are six lists of hurricane names, with alternating male and female monikers - one year "a" is a male name, the next it's a female - that are recycled every six years.

youdao

研究者采访了12189名参与者，年龄从51到61，每两年回访一次有关他们的健康、经济状况、就业以及退休状况，从1992年持续了六年。

The researchers interviewed 12189 participants, aged 51 to 61, every two years over a six-year period beginning in 1992 about their health, finances, employment and retirement.

youdao