中文词源
refractory 倔强的，顽固的
re-,向后，往回，-fract,破开，碎开，词源同 break,fraction.-ory,形容词后缀。字面意思即宁为 玉碎的，引申词义倔强的，顽固的。
英语词源
- refractory (adj.)
- "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.
权威例句
- 1. He is a very refractory child .
- 他是一个很倔强的孩子。
- 2. Silicate minerals are characteristically refractory and difficult to break down.
- 硅酸盐矿物的特点是耐熔和难以分离.
- 3. The excreta of aquatic animals - fish, frogs, turtles, snakes, etc - contain similar refractory materials.
- 水生动植物如鱼 、 蛙 、 龟 、 蛇等的排泄物中也会含有类似的难处理的物质.
- 4. The excreta of humans and land animals contain soluble refractory organic matter.
- 人和陆生动物排泄物含有可溶的难处理有机物质.
- 5. Reflux leads to recurrent or refractory aspiration pneumonia.
- 反流可引起复发的难治的吸入性肺炎.
相关单词
广而告之
1一秒钟记单词小学英语单词记背神器英语一二三四五六年级人教版英语词汇汇总表单词记背神器 单词记忆书单词词汇速记强化训练
【推荐理由】赠运费险，热门商品
【现价】27.9
【下单链接】38￥ CZ3457 5OArdvEMFvn￥