Level 4 - 3 - Spelling Practices

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(1) n. [(门等)铰链,枢纽] a joint that holds two parts together so that one can swing relative to the other

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(2) n. [监禁] confinement; putting someone in prison or in jail as lawful punishment

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(3) v. [开始,发源] begin; originate; admit into membership

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(4) n. [离子] a particle that is electrically charged positive or negative

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(5) n. [键盘] a device consisting of a set of keys on a piano or organ or typewriter or typesetting machine or computer

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(6) n. [结伴,成配偶] a fellow member of a team

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(7) n. [新手] beginner; person new to a field or activity

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(8) v. [彻底摧毁] destroy completely; do away with completely so as to leave no trace

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(9) n. [阻塞,妨碍,障碍物] act of obstructing; any structure that makes progress difficult

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(10) n. [章鱼] any of several marine mollusks