The length of the war is one of the biggest unknowns.战争要持续多久是最大的未知数之一。There are many unknowns in science.科学上还有许多未知之处.It was like a single equation with two unknowns.这挺像两个未知数组成了个简单方程....
Oil markets oscillated on the day's reports from Geneva.石油市场因当天来自日内瓦的报道出现了起伏。Her moods oscillated between depression and elation.她的情绪时而抑郁，时而亢奋。The president of the Republic oscillated between a certain audacity and ...
引语可能会被篡改，使用时断章取义。Quotes can be manipulated and used out of context.只有直接引语应放在引号内。Only direct speech should go inside inverted commas.在叙述过程中, 间接引语的动词通常用过去式.In narrative, the reporting verb is in the past tense....