Example sentences of "[noun pl] that prevent them " in BNC.

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1 Most flesh-eating reptiles have simple spikes that prevent them from chewing their prey ; they have to gulp it down whole and then remain in a torpor for days or weeks to digest the meal .
2 It is only the natural caution of paleontologists that prevents them from jumping to startling conclusions .
3 We will continue our efforts to break down the barriers that prevent them from competing freely throughout Europe and in the wider world .
4 The difficulty encountered by the expertise theory in trying to demonstrate the legitimacy of corporate managerial power by showing that there are restraints on the discretion of the managers stems from its attempt to combine a deference to the judgments of business managers with an insistence that corporate managers are subject to fiduciary duties that prevent them from exercising their power for their own purposes or for other non-corporate ends .
5 Visually handicapped pupils are likely to need adaptations to the educational materials that are in the ordinary classroom if they have severe sight defects that prevent them from discriminating the size of print being used by the class .
6 Backed by the incessant thud of a drum machine , it 's only these electric rhythms that prevent them from tumbling into disorder .
7 But what are the organisational and personal defensive routines that prevented them from talking to customers in the first place ?
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