According to the Los Angeles Times, the book hit the top 10 on Monday - the same day Jobs unveiled Apple's new iCloud service - vacillating between No. 9 and No. 13.

但据洛杉矶时报的报道，就在周一乔布斯公布苹果最新“iCloud”服务的当天，该书打入榜单前十，徘徊于9到13位之间。

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I am vacillating between leaving and staying on.

我在去和留之间犹豫不决。

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He is vacillating between leaving and staying on.

他在去和留之间举棋不定。

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Yeats's late poems speak from the point of view of Jane, more often than not, and yet powerfully, - we do see him vacillating from different-- between different points of view.

叶芝的晚期诗歌从珍妮的角度讲话，经常是这样，但很有力，我们也确实发现他-,在不同的观点间举棋不定。

耶鲁公开课 - 现代诗歌课程节选

"The Next Day, " his 26th album, finds Bowie very much alive and vacillating between forward-looking restlessness and outright nostalgia.

CNN: Review: David Bowie's first new album in 10 years