Group (3) - Spelling Practices

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(1) a. Syn. skeptical(懐疑) difficult to believe; incredible; skeptical
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(2) ad. Syn. deliberately; consciously(故意) deliberately; consciously
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(3) n. (キーボード) device consisting of a set of keys on a piano or organ or typewriter or typesetting machine or computer 
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(4) n. (ナップ) bag carried by a strap on your back or shoulder
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(5) n. (電子レンジ) a short electromagnetic wave; cook or heat in a [___] oven
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(6) v. Syn. alter; change(変更) alter; change
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(7) v. Syn. dampen; humidify(湿らす) dampen; humidify
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(8) n. Syn. confidence; spirit; mood(士気) confidence; mood or spirit of a group that makes the members wants the group to succeed 
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(9) a. Syn. adverse; disparaging(負) adverse; involving disadvantage or harm; pessimistic
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(10) v. Syn. darken; hide; block(無名) darken; make dim or indistinct; conceal in obscurity