noun🔗Share杀手，凶手。 One who or that which kills."Carbon monoxide is a silent killer."一氧化碳是无声的杀手。personinhumanactioncharacteressentialChat with AIVocabulary GamePractice Reading
noun🔗Share难题, 杀手锏 That which causes stress or is extremely difficult, especially that which may cause failure at a task."That test was a killer."那次考试真是个难题。attitudeconditionachievementessentialChat with AIVocabulary GamePractice Reading
noun🔗Share杀手级产品， 爆款。 Something that is so far ahead of its competition that it effectively kills off that competition."Digital streaming platforms are CD killers."数字流媒体平台是CD杀手级产品。businessessentialChat with AIVocabulary GamePractice Reading
noun🔗Share凯利，淘汰赛 A knockout form of darts or pool involving several players."The school's dart club held a killer tournament this weekend. "学校飞镖社这周末举办了一场凯利淘汰赛。sportgameentertainmentessentialChat with AIVocabulary GamePractice Reading
noun🔗Share鱼棍，敲鱼棒 A club used for killing fish."The fisherman used his killer to stun the fish before catching them. "渔夫用他的敲鱼棒把鱼打昏，然后再抓它们。utensilfishweaponessentialChat with AIVocabulary GamePractice Reading
noun🔗Share销戳，邮戳，盖销戳记 A particularly heavy type of handstamp, or portion of one, often obscuring a large part of the postage stamp."The killer handstamp on the envelope obscured most of the address. "信封上的那个销戳很重，把大部分地址都盖住了。stationerywritingmarkessentialChat with AIVocabulary GamePractice Reading
noun🔗Share止韵符，去声符 A diacritical mark used in Indic scripts to suppress an inherent vowel (e.g., the Hindi viram, the Bengali or Oriya hasanta) or render the entire syllable silent (e.g., the Burmese virama, the Khmer toandakhiat)."The killer in the Hindi word "स्वदेश" (svadeś) suppresses the inherent vowel sound, making it a word without a vowel ending. "印地语单词“स्वदेश”(svadeś)中的止韵符抑制了固有的元音，使之成为一个没有元音结尾的词。languagelinguisticsphoneticswritinggrammarmarkwordessentialChat with AIVocabulary GamePractice Reading
adjective🔗Share给力， 棒， 酷。 Excellent, very good, cool."killer feature"给力功能stylelanguageentertainmentessentialChat with AIVocabulary GamePractice Reading
adjective🔗Share致命的，毁灭性的 Causing death, destruction, or obliteration."killer bee"致命的蜜蜂disasterwarmilitaryactionessentialChat with AIVocabulary GamePractice Reading
adjective🔗Share令人难受的，让人不舒服的。 Distressing, uncomfortable."I had a killer headache this morning."我今天早上头疼得厉害，难受死了。sensationmindemotionsufferingessentialChat with AIVocabulary GamePractice Reading
noun🔗Share虎鲸，逆戟鲸 A sea mammal related to dolphins and porpoises (Orcinus orca)."The killer whales were spotted playing near the fishing boats. "虎鲸被发现在渔船附近嬉戏。animaloceanbiologyessentialChat with AIVocabulary GamePractice Reading
