drone N. /闲人;雄蜂/idle person; male bee. Content to let his wife support him, the would-be writer was in reality
nothing but a drone.
drone V. /嗡嗡声;语气呆板的声音/talk dully; buzz or murmur like a bee. On a gorgeous day, who wants to be stuck in a
classroom listening to the teacher drone ?
dross N. /渣滓，废物/waste matter; worthless impurities. Many methods have been devised to separate the valuable
metal from the dross.
drudgery N. /苦差事，苦工/menial work. Cinderella's fairy godmother rescued her from a life of drudgery.
dubious ADJ. /可疑的/questionable; filled with doubt. Many critics of SAT I contend the test is of dubious worth. Jay
claimed he could get a perfect 1600 on SAT I, but Ellen was dubious: she knew he hadn't cracked a book in three years.
ductile ADJ. /柔软的，有韧性/malleable; flexible; pliable. Copper is an extremely ductile material: you can stretch it into
the thinnest of wires, bend it, even wind it into loops.
dulcet ADJ. /甜美的(声音)/sweet sounding. The dulcet sounds of the birds at dawn were soon drowned out by the roar
of traffic passing our motel.
dumbfound V. /使人惊讶/astonish. Egbert's perfect 1600 on his SAT I exam dumbfounded his classmates, who had
always found him to be perfectly dumb.
dupe N. /易被开涮的人/someone easily fooled. While the gullible Watson often was made a dupe by unscrupulous
parties, Sherlock Holmes was far more difficult to fool. also V.
duplicity N. /奸诈，狡猾;伪善;两面三刀，两面派/double-dealing; hypocrisy. When Tanya learned that Mark had been
two-timing her, she was furious at his duplicity.
Word List 16 duration-encroachment
duration N. /持续时间/length of time something lasts. Because she wanted the children to make a good impression on
the dinner guests, Mother promised them a treat if they'd behave for the duration of the meal.
duress N. /(非法的)限制，关押/forcible restraint, especially unlawfully. The hostages were held under duress until the
prisoners' demands were met.
dutiful ADJ. /恭敬的;尊重的/respectful; obedient. When Mother told Billy to kiss Great-Aunt Hattie, the boy obediently
gave the old woman a dutiful peck on her cheek.
dwarf V. /使看上去矮小/cause to seem small. The giant redwoods and high cliffs dwarfed the elegant Ahwahnee Hotel,
making it appear a modest lodge rather than an imposing hostelry.
dwindle V. /缩水;减少/shrink; reduce. The food in the life boat gradually dwindled away to nothing; in the end, they ate
the ship's cook.
dynamic ADJ. /充满活力的/energetic; vigorously active. The dynamic aerobics instructor kept her students on the run;
she was a little dynamo.
earthy ADJ. /粗糙的;未加工的/unrefined; coarse. His earthy remarks often embarrassed the women in his audience. ebb V. /衰退/recede; lessen. Sitting on the beach, Mrs. Dalloway watched the tide ebb: the waters receded, drawing
away from her as she sat there all alone. also N.
ebullient ADJ. /热情的，激动的/showing excitement; overflowing with enthusiasm. Amy's ebullient nature could not be
repressed; she' was always bubbling over with excitement. ebullience, N.
eccentric ADJ. /古怪的，奇怪的/irregular; odd; whimsical; bizarre. The comet veered dangerously close to the earth in its
eccentric orbit. People came up with some eccentric ideas for dealing with the emergency: someone even suggested tieing a knot in the comet's tail!
eccentricity N. /怪僻，古怪;特性/oddity; idiosyncrasy. Some of his friends tried to account for his rudeness to strangers as the eccentricity of genius.
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