1. Her moods oscillated between depression and elation. 她的情绪时而抑郁,时而亢奋。
2. Oil markets oscillated on the day's reports from Geneva. 石油市场因当日来自日内瓦的报道而出现了起伏。
3. The president of the republic oscillated between a certain audacity and a prudent realism. 该共和国总统施政时而大胆,时而谨慎务实。
4. There were, however, fluctuations in the climatic conditions, with the consequences that wet conditions were followed by dry ones, so that the availability of plants and animals oscillated brusquely. 但是,气候条件存在波动,造成干湿天气交替,以致可以获取的动植物数量忽高忽低。