plain [pleɪn]n. 平原, 草原adj. 简单的, 平常的, 明白的adv. 清楚地plain 同义词: clear distinct evident homely obvious ordinary simple unattractive understandable
plain [pleɪn]n. 平原, 草原adj. 简单的, 平常的, 明白的adv. 清楚地plain 同义词: clear distinct evident homely obvious ordinary simple unattractive understandable