句子结构分析
句子结构分析Notuntiltheinventionofjetenginecouldairplanestravelatsupersonicspeeds....
句子结构分析Not until the invention of jet engine could airplanes travel at supersonic speeds.
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这个属于not until的倒装结构:
当Not until位于句首时,句子要倒装.其结构为:Not until+从句/表时间的词+助动词+(主句)主语+谓语+.如:
①Not until the teacher came in did the students stop talking.直到老师进来学生们才停止讲话.
②Not until next week will the sports meet be held.直到下周才开运动会.
当Not until位于句首时,句子要倒装.其结构为:Not until+从句/表时间的词+助动词+(主句)主语+谓语+.如:
①Not until the teacher came in did the students stop talking.直到老师进来学生们才停止讲话.
②Not until next week will the sports meet be held.直到下周才开运动会.
追答
意思是直到喷气发动机发明,飞机才得以以超音速航行。
正常顺序是Areoplane can only travel at supersonic speed after the jet engine is invented.
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