除了发生过几件不幸的事情（包括一次导致一人被咬伤两只狗被咬死的北极熊袭击事件），头两年的航程出奇地顺利。

Despite several mishaps—including a polar bear attack that ended with one crewman bitten and two dogs dead—the first two years of the journey were oddly easy.

youdao

议员每两年就要进行一次改选，这使得他们不停地忙于筹募竞选基金，由于初选制度，当地社会活动家不得不勤勉耕耘。

Every member of the House is up for re-election every two years. That requires perpetual fund-raising and, thanks to the system of primary elections, assiduous cultivation of local activists.

youdao

为了一个MBA学位我暂停工作两年、欠了债、没有了收入，而如果让我重选一次的话，我还是会毫不犹豫地这么做。

I took two years out for an MBA and got into debt, lost out on income and would do it again in a second.

youdao