"stubborn, obstinate, perverse," 1610s (earlier refractorious, 1550s, refractary, c. 1600), from Latin refractarius "obstinate, stubborn," from past participle stem of refringere (see refraction). Related: Refractorily; refractoriness.
雙語例句
1. He is a very refractory child .
他是一個很倔強的孩子。
來自辭典例句
2. Silicate minerals are characteristically refractory and difficult to break down.
硅酸鹽礦物的特點是耐熔和難以分離.
來自辭典例句
3. The excreta of aquatic animals - fish, frogs, turtles, snakes, etc - contain similar refractory materials.
水生動植物如魚 、 蛙 、 龜 、 蛇等的排泄物中也會含有類似的難處理的物質.
來自辭典例句
4. The excreta of humans and land animals contain soluble refractory organic matter.
人和陸生動物排泄物含有可溶的難處理有機物質.
來自辭典例句
5. Reflux leads to recurrent or refractory aspiration pneumonia.