You can____your shorthhand ability by taking notes in shorthand during lectures.A.keep onB.keep upC.keep backD.keep down主要是A和B都有“继续”的意思! 英语
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【答案】 You can keep up
your shorthhand ability by taking notes in shorthand during lectures
这里的shorthhand ability 速记的能力是需要通过taking notes in shorthand 来保持,keep up 有保持某种能力或者姿势位置的意思.
keep on 只能保持状态的持续