Group (4) - Spelling Practices

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(1) /'hi:dlɪs/ a. Syn. disregarding(轻蔑的,不理睬的) unaware, without noticing; unmindful or thoughtless
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(2) /'heɪnəs/ a. Syn. wicked; atrocious; flagitious(可恶的,令人深恶痛绝) grossly wicked; abominable; hateful; infamous
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(3) /'ɪmɪnənt/ a. Syn. impending(即将到来,逼近的) near at hand; close in time; about to occur
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(4) /ɪm'pɜrvɪəs/ a. Syn. impenetrable(不能渗透的,不为所动的,不受影响的) impenetrable; incapable of being damaged or distressed
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(5) /ɪm'pju:n/ v. Syn. challenge(打击,挑战) dispute or contradict, often in insulting way; challenge
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(6) /ɪn'saɪsɪv/ a. Syn. cutting; sharp(尖锐,深刻,激烈) penetrating, clear, and sharp, as in operation or expression
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(7) /ɪnkɒg'ni:toʊ/;/ɪn'kɒgnətoʊ/ a. (隐姓埋名的,化名) with one's identity disguised or concealed; in disguise; in an assumed character, or under an assumed title
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(8) /ɪn'kʌmbənt/ a. Syn. obligatory(义不容辞的,职责在身的) imposed as an obligation or duty; currently holding an office
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(9) /ɪndɪ'fætɪgəb(ə)l/ a. Syn. tireless(疲倦) tireless; showing sustained enthusiastic action
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(10) /ɪn'dɒmɪtəb(ə)l/ a. Syn. unconquerable; invincible(不屈服的,不可被征服的) unconquerable; incapable of being overcome