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adj.底层的；最低的
n.最低点
1、rock bottom price───最低价
2、bottom───n.(Bottom)人名；(英)博顿；vi.到达底部；建立基础；vt.装底；测量深浅；查明真相；adj.底部的；n.底部；末端；臀部；尽头
3、at rock bottom───根本上；处于最低点
4、bottom hole───底孔，下部孔；底孔，井底；下部孔；底部炮眼
5、river bottom───河底
6、SU Bottom───SU底部
7、at bottom───实际上（等于atthebottom）；adv.实际上; 说到底; 骨子里
8、bottom view───底视图，仰视图；[机]底视图；[机]仰视图
9、bottom line───n.概要，账本底线；结果；概要；账本底线；关键
1、Prices hit rock bottom.───价格降到了最低点。
2、What they do offer is a good product at a rock-bottom price.───他们真正提供的是一种以价格在底线的优质产品。
3、marriage had reached rock bottom.───婚姻已经走到了尽头。
4、And morale seems to have hit rock bottom. Everybody seems to be constantly run off their feet.───士气也似乎跌到了谷底.人人都好像忙得脚不着地。
5、The effect of the war is to harden this pose of casual cynicism into a rock-bottom despair.───战争结果把原来荒唐的玩世不恭态度变成了一种彻底的绝望。
6、The effect of deferment will not be physicallynoticeable for at least several months. By then unemployment will have reached rock bottom.───延缓的效果最少在几个月内还不会明显地为人们所注意到。到那时，失业率将降到最低点了。
7、No matter how much risk they take or how they manage it, they can borrow at rock-bottom interest rates.───无论他们承担着多大的，怎样管理它的风险，它可以一最低的利率借款。
8、Though there is still a gap between your rock-bottom prices and my expectations, I'm willing to sign contracts with you.───虽然贵方的底价与我方所希望得到的价格仍有距离，我还是愿意铅合同。
9、Bartle Bull, a banker, sees a chance to pay "rock-bottom" prices for a piece of "one of the richest economies in the world. "───银行家BartleBull看到了一个用最低的价格获得“世界上最富有的经济之一”的一部分的机会。