例文・使い方で印象づける「harden」の覚え方
スポンサーリンク...This is intended to harden the young soldiers, and prepare them for the rank of men... 
David Livingstone 「Missionary Travels and Researches in South Africa」
...These tubes were formed by plastering a mixture ofclay and grass round a smooth roller of wood, which, as soon asthe clay began to harden, was withdrawn, and the tube left to dryin the sun...
Mungo Park 「Travels in the Interior of Africa, Vol. 2 [of 2]」
...At the beginning of his speech Deena’s pale face flushed, but as he went on setting forth the obstacles to his going she seemed to harden in her scorn...
Various 「Ainslee's, Vol. 15, No. 5, June 1905」
...Dagny Harden had been fond of him in a mild, domestic, sincere way that satisfied both him and herself, and that had never faltered...
Various 「Ainslee's, Vol. 15, No. 6, July 1905」
...Over this place some fine sawdust and on top ofthe sawdust, pour liquid plaster of paris carefully so thatit will harden into a layer about half an inch thick...
Clarence M. Weed 「Butterflies Worth Knowing」
...About a fortnightlater the butterfly emerges and crawls at once to the outsideof the nest, where it rests quietly while its wings expandand its tissues harden...
Clarence M. Weed 「Butterflies Worth Knowing」
...If hisfeet are tender, wash them in brine, to harden them...
Dinks, Mayhew, and Hutchinson 「The Dog」
...When the spurs of a cockerel begin to harden and to grow a long, sharppoint, and the bird becomes boisterous and quarrelsome, the fleshbecomes dry and tough and is not fit for roasting...
John H. Robinson 「Our Domestic Birds」
...Heat and aprolonged air-bath are necessary to harden and colour the fragilecreature...
J. H. Fabre Bernard Miall 「Social Life in the Insect World」
...He has had nostruggles or battles to harden and toughen him...
John Burroughs 「Ways of Nature」
...The clay atcertain places in the walls, especially near the insertions of the beamsand about the window openings, appears to have been mixed with ablack pitch, which serves to harden the mixture...
Jesse Walter Fewkes 「Archeological Expedition to Arizona in 1895」
...Thus, the limesticking in the channels will harden and solidify into a mass, and soprevent water or anything else from penetrating through the joints...
Vitruvius 「Ten Books on Architecture」
...The article must then be placed inthe stove to harden at a temperature of 212° F...
William N. Brown 「Handbook on Japanning: 2nd Edition」
...As oxide of zincdoes not readily form a saponaceous compound with fats or oil like whitelead, the paint prepared with it and ordinary linseed oil does not dryor harden so rapidly...
George Field 「Field's Chromatography」
...What fat there was on the inside was very yellow, and so soft itwould not harden at all...
Ernest Giles 「Australia Twice Traversed, The Romance of Exploration」
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