那些曾经恋爱不顺利的人都会同情休。Anyone who has been in a troubled relationship will sympathise with Sue.这次平稳顺利的飞行令人难忘。The smoothness of the flight was memorable.即便在顺利的情况下也不要松劲.Don't let down even if the going is good....
所有国会议员每两年重新选举一次。Every two years all the congressmen stand for re-election.众议院的四百三十五名议员每两年选举一次.The 435 members of the House are elected every two years.他每两年有一次探亲假.He gets home leave every two years....