eye-openern.
英 'ai,əupnə(r) | 美
中文n. 使人惊奇的事物；使人大开眼界的事物
词根词源
eye-opener (n.)"anything that informs and enlightens," 1863, from eye (n.) + agent noun from open (v.). Earlier "alcoholic drink" especially one taken early in the day (1818).
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