"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(gè)很倔強(qiáng)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(diǎn)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.