例:Efforts to control the spruce budworm have haddeleterious effects on the red-osier dogwood.
2.deliberate a．深思熟虑的(characterized by orresulting from careful and thoroughconsideration)；蓄意的(voluntary)
例:The deliberate selective breeding produced modern domesticated sheep.//The deliberateand even brutal aggression integral to some forms of competitive athletics increase thelikelihood of imitative violence.
3.delicacy n.美味，佳肴（sth. pleasing to eat that is consdered rare or luxurious）；精妙(the quality or state of being luxurious)
例:A special Japanese green tea called genmai-cha contains brown rice and is considered asadelicacy fit for a gourmet by most Japanese, though it is virtually unavailable outsideYokohama.
4.delicate a．微妙的（subtle);精致的(pleasirg to the senses);脆弱的(fragile)
例:The new variety of wheat had a more delicate flavor.//Tom was a delicate child who isoften ill．
5.delineate v.描画(to i rdicate or represent by drawn or painted lines);描给轮廓(to markthe outline of)
例:An argument is delineated, followed by a counterargument.
6.delinquent n.行为不良的人（a delinquent person);a.拖欠的(being overdue inpayment）；违法的（offending by neglect or violation of duty or of law)
例:The bank holds $3 billion in loans that are seriously delinquent.//delinquent behavior违法行为
7.deliver v.支付（to take and hand over to or leave for another)递送（to send);实现(tocome through with)
例:In Borania many people who want to quit smoking wear nicotine skin patches, which delwersmall doses of nicotine through the skin.
And gladly would learn.and gladly teach.
——英国诗人乔叟(Chaucer, British poet)