Group (N O) - Spelling Practices

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(1) n. (航海) guidance of ships or airplanes from place to place
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(2) v. Syn. disregard; ignore(疏忽,忘记) disregard; ignore; pay little or no attention to
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(3) a. Syn. insignificant; tiny(可忽略不计的) so small, trifling, or unimportant that it may be easily disregarded
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(4) n. (镍,镍币) coin worth one twentieth of a dollar
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(5) n. (恶梦,可怕的事) dream arousing feelings of intense fear, horror, and distress; event or experience that is intensely distressing
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(6) v. Syn. sign; mark(以符号表示,把…写成记号) mark with spots or lines, which are often colored; add notes to
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(7) a. Syn. forgetful(遗忘的,出神的) inattentive or unmindful; lacking all memory; forgetful
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(8) v. Syn. besiege(纠缠,困扰) preoccupy the mind of excessively; besiege; compass about; dominate the thoughts of someone
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(9) a. (离岸的,海面上的) at some distance from the shore 
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(10) n. (相反的事物) two words that express opposing concepts; contrariwise; directly facing each other