Group (2) - Spelling Practices

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(1) n. (装饰,装饰品) act of decorating something; something used to beautify 
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(2) v. Syn. authorize; empower(授权,委任代表) authorize and send another person as one's representative; commit or entrust to another
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(3) n. (扩散,传播) act of dispersing or diffusing something
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(4) n. (恐龙) any of numerous extinct terrestrial reptiles of the Mesozoic era
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(5) n. (图画,制图) creation of artistic drawings
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(6) n. (生态学家) biologist who studies relation between organisms and their environment
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(7) a. Syn. vacant(空的,空洞的,空虚的) containing nothing; not holding or having anything within; void of contents or appropriate contents
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(8) n. Syn. company; firm; business(事业,企业) company; firm; organization created for business ventures 
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(9) v. Syn. breathe out(呼出,呼气) breathe out; give out
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(10) n. Syn. variable; element; component(因素,变量) anything that contributes causally to a result; element; variable