Group (E) - Spelling Practices

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(1) a. Syn. frugal; cheap; economical(经济的,经济学的,有利润的) pertaining to economy; frugal; cheap
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(2) n. (经济学) branch of social science that deals with the production and distribution and consumption of goods and services and their management 
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(3) a. Syn. detailed; complicated(精细的,精心的,详尽的) marked by complexity and richness of detail; done with care and in minute detail
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(4) n. (电工) one whose occupation is the installation, maintenance, repair, or operation of electric equipment and circuitry
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(5) a. Syn. refined; exquisite(雅致的) refined and tasteful in appearance or behavior or style
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(6) n. Syn. endeavor(努力,力争) effort or attempt; exertion of physical or mental powers toward the attainment of object
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(7) v. Syn. approve; support(认可,默许,支持) acknowledge by signing a bill, draft, or other instrument; approve; support
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(8) n. Syn. perseverance; stamina; duration(忍耐,持久(力)) perseverance; state or fact of persevering; continuing existence
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(9) v. (使加入,使入会) insert in a roil; register or enter in list or catalogue; insert in records; enlist
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(10) a. (热心的,满腔热情的) having or showing great excitement and interest