Read Edit View history 费力 fèilì strenuous Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 费力/費力 · fèilì · strenuous 2026/03/04 费力 / 費力 fèilì strenuous to expend a great deal of effort 爬山虽然很费力,但山顶的风景很美。 adjective created sense Mar 4, 2026, 02:25 AM