Example sentences of "[is] [verb] down [prep] [adj] [noun sg] " in BNC.

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1 The substrate ( carbohydrate , fat , protein ) is broken down into pyruvic acid ( 3C ) .
2 Instead , the animal may use up much of the ‘ reserve ’ oxygen ( held principally in the muscles , bound to the pigment myoglobin ) ; and , more significantly , it will derive much of the energy it needs by anaerobic respiration , in which sugar is broken down to lactic acid , without the use of oxygen .
3 In a board reorganisation , Sir Brian is stepping down as chief executive .
4 MAURICE SAATCHI , who with his brother Charles created Saatchi & Saatchi , the world 's biggest advertising group , is stepping down as chief executive .
5 Aimed at the dedicated games player with crisp graphics and rapid scaling , it 's let down by short battery life .
6 Alex Murphy , a determined Detroit cop , is shot down in cold blood during a risky low-profile operation .
7 The mouth is drawn down in bitter disgust , the eyes nearly closed , unseeing .
8 It is this stress that keeps the fluid closer to the wall moving ; in its absence this fluid is slowed down by viscous friction at the wall .
9 Trying to follow a mathematical argument is very different from following an argument that 's set down in plain English , in a qualitative way .
10 Much of the material extracted now is ground down for various manufacturing purposes , whilst there is a lively trade in making slate ornaments for the tourist industry .
11 [ the mark-up ] is kept down to modest size by the existence of many independent firms within the corporate sector ; by the availability , elsewhere in the corporate sector , of reasonably close substitutes for the products of any one firm ; and by the perennial threat of new entry into any field in which the monopoly mark-up is large .
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