Example sentences of "has long [been] know [prep] " in BNC.

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1 Collagen has long been known for its hydrating power and as a source of nutrients for the skin , but its penetration into the epidermis has always been limited by its high molecular weight .
2 It has long been known for its very good annual conferences , and for giving the Eleanor Farjeon Award .
3 Singapore has long been known for its campaigns against littering , smoking , spitting and jay-walking , but it may be the only place in the world trying to toilet train an entire nation .
4 So that was what I was doing in Baldersdale — looking for survivors in what has long been known to be a botanically rich area .
5 Mr Chaskalson has long been known as a human-rights lawyer defending people charged under South Africa 's apartheid and terrorism laws .
6 Its colour used to range from yellowish or tawny to dark red , but the red was always preferred and the breed is now characteristically ‘ ruby red ’ — a dark but bright blood colour — and it has long been known as the Ruby of the West .
7 South of the Brabant Massif the existence of workable Upper Carboniferous coals beneath deformed Devonian rocks has long been known from mines and boreholes through the Faille du Midi or Midi Overthrust , the major thrust-fault complex of the Variscan Front .
8 But it has long been known from careful palaeontological studies that even in the thick development in the Cotswolds , there is evidence of two major breaks and a period of folding in what otherwise was a very peaceful period in British geological history .
9 It has long been known in education circles that a clear correlation exists between social class background and examination success .
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