| 单词 | rust |
| 释义 | rust /rASt; rASt/ n [U] 1 reddish-brown coating formed on iron by the action of water and air; similar coating on other metals: (铁或其他金属表面因潮湿与空气作用而生的) Jt： ~- covered machinery; 生了镜的机器; rub the ~ off sth. 从某物表面把铺擦去。 2 (plant-disease with ~-coloured spots caused by) kinds of fungus; mildew; blight. (植物之) 锁病; (使植物发生钟病之) 各种霉菌; 毒; 铺菌。 vt, vi [VP6A, 2A, C] (cause to) become covered with ~; (fig) become poor in quality because not used: (使) 覆有镜; 生钟; (喻) 因不用而变坏： Don't leave the lawn-mower out in the garden to ~. 不要把剪草机丢在花园里生钟。 It's better to wear out than to ~ out, to become worn through use than to lose value by ~ing. 用坏总比不用而放着生绩好。 -—less adj that does not 不生矿的： ~ ]ess steel, used for stainless cutlery, etc. 不镜钢。 ~Y adj (-ier, -iest) 1 covered with 生钮曲 : ~y needles. 生绣的针。 2 in need of practice; out-of-date: 需要练习的; 过时的： My German is rather ~ y, hasn't been used for a long time and needs to be practised. 我的德文 (因经年不用) 需要多加练习了。 3 (of black cloth) discoloured by age; dingy or shabby. (指黑布) 因太久而褪色的; 脏旧的; 硕旧的。 ~iness n [U]. |
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