短語(yǔ)詞組短語(yǔ)teach laboriously 辛苦地教學(xué)preserve laboriously 喫力地維持sing laboriously 努力地歌唱face laboriously 艱難地麪對(duì)pick laboriously 費(fèi)勁地挑選work laboriously 辛辛苦苦;辛勤地工作dig laboriously 喫力地挖gather laboriously 勤奮地收集labour laboriously 艱難地勞動(dòng) 返回 laboriously