adj. 1.愚钝的，感觉迟钝的，呆笨的。 2.钝的，不快的，不锋利的 (opp. sharp)。 3.(天气等)阴郁的，阴暗的；(颜色等)暗淡的。 4.(市场等)呆滞的，萧条的；(谈话等)单调的，枯燥的，无聊的，沉闷的。 5.(光等)模糊的。 短语和例子 a dull child 头脑迟钝的孩子。 a dull edge 钝刀。 be dull of hearing 耳朵不灵。 a dull fire 文火。 a dull pain 钝痛，隐痛。 a dull day 阴天。 a dull town 萧条的市镇。 Trade is dull. 生意清淡。 a dull book 枯燥无味的书。 a dull landscape 单调的景色。 vt. 1.把…弄钝。 2.使阴暗，使阴郁。 3.缓和，减轻(痛苦等)。 4.使迟钝；使呆滞。 短语和例子 dull a razor's edge 把刀片弄钝了。 one's sense dulled by his emotion 因激动而造成的感觉迟钝。 dull sorrow 减轻哀愁。 vi. 1.变钝；变迟钝。 2.(痛苦等)减少。 3.【纺织；印染】消光。 短语和例子 dull the edge of 1. 弄钝刃口。 2. 减弱(兴趣等)。
emitting or reflecting very little light; "a dull glow"; "dull silver badly in need of a polish"; "a dull sky"
not having a sharp edge or point; "the knife was too dull to be of any use"
not keenly felt; "a dull throbbing"; "dull pain"
lacking in liveliness or animation; "he was so dull at parties"; "a dull political campaign"; "a large dull impassive man"; "dull days with nothing to do"; "how dull and dreary the world is"; "fell back into one of her dull moods"
(of business) not active or brisk; "business is dull (or slow)"; "a sluggish market" 同义词：slow, sluggish,
(of color) very low in saturation; highly diluted; "dull greens and blues"
slow to learn or understand; lacking intellectual acuity; "so dense he never understands anything I say to him"; "never met anyone quite so dim"; "although dull at classical learning, at mathematics he was uncommonly quick"- Thackeray; "dumb officials make some really dumb decisions"; "he was either normally stupid or being deliberately obtuse"; "worked with the slow students" 同义词：dense, dim, dumb, obtuse, slow,
darkened with overcast; "a dark day"; "a dull sky"; "the sky was leaden and thick" 同义词：leaden,
so lacking in interest as to cause mental weariness; "a boring evening with uninteresting people"; "the deadening effect of some routine tasks"; "a dull play"; "his competent but dull performance"; "a ho-hum speaker who couldn''t capture their attention"; "what an irksome task the writing of long letters is"- Edmund Burke; "tedious days on the train"; "the tiresome chirping of a cricket"- Mark Twain; "other people''s dreams are dreadfully wearisome" 同义词：boring, deadening, ho-hum, irksome, slow, tedious, tiresome, wearisome,
being or made softer or less loud or clear; "the dull boom of distant breaking waves"; "muffled drums"; "the muffled noises of the street"; "muted trumpets" 同义词：muffled, muted, softened,
not clear and resonant; sounding as if striking with or against something relatively soft; "the dull thud"; "thudding bullets" 同义词：thudding,
blunted in responsiveness or sensibility; "a dull gaze"; "so exhausted she was dull to what went on about her"- Willa Cather
make less lively or vigorous; "Middle age dulled her appetite for travel"
become dull or lusterless in appearance; lose shine or brightness; "the varnished table top dulled with time"
become less interesting or attractive 同义词：pall,
make dull in appearance; "Age had dulled the surface"
make dull or blunt; "Too much cutting dulls the knife''s edge" 同义词：blunt,
make numb or insensitive; "The shock numbed her senses" 同义词：numb, benumb, blunt,
deaden (a sound or noise), especially by wrapping 同义词：muffle, mute, damp, dampen, tone down,
例句与用法
1.
Village life is too dull for me . 我觉得乡村的生活方式太单调乏味了。
2.
Lab work is dull and repetitious . 实验室里的工作味同嚼蜡翻来覆去。
3.
It would be very dull to be married to denis . 和丹尼斯结婚太乏味了。
4.
It had been dull and somber enough . 那是十分愁闷的，十分忧郁的。
5.
Their dress was plain and dull in colouring . 他们的衣服朴素，颜色单调。
6.
The surf's roar was here dulled . 拍岸浪的咆哮声在这儿略为低沉。
7.
It is so much better than just dull comfort . 那比无聊的安安逸逸好多了。
8.
Then followed a time of dull misery . 接着而来的是一段沉闷而苦痛的时日。
9.
Watching television dulls one 's wits . 看电视能使人头脑迟钝。
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