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1.ratchet up 逐渐升高，增加，渐进
例句：The men said they were Indian, but the attacks appeared to ratchet up tensions in an already volatile region.
男子说他们是印度人，但是此次袭击使到本已敏感多变的地区更加剑拔弩张。
2.turn over 移交，翻身
例句：Since he’s the past,why not turn over this page?
既然他已经是过去了，为什么不翻过这一页呢？
3.net sales 净销售额
例句：Net sales in the quarter were up 6 percent versus the second quarter of 2009.
第二季度净销售额比2009年第二季度增加6%。
vt. 辩护；防护 vi. 保卫；防守
