记忆方法
将“gainful”拆分为“gain”和“ful”。想象一个“gain”（获得）的动态过程，使其充满（ful）了积极的成果或收益，从而在脑海中形成“gainful”意味着有收益的、有报酬的这样的印象。
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英语词源
- gainful (adj.)
- "producing profit or advantage," 1550s, from gain (n.) + -ful. Phrase gainfully employed attested from 1796. Related: Gainfully (1540s).
权威例句
- 1. Are you in gainful employment ? iie Do you have a paid job?
- 你有有报酬的工作 吗 ?
- 2. Spoken parts in an opera of this kind of management consciousness, management behavior is gainful.
- 这种经营意识 、 经营行为说白了就是唯利是图.