短語詞組短語teach laboriously 辛苦地教學preserve laboriously 吃力地維持sing laboriously 努力地歌唱face laboriously 艱難地面對pick laboriously 費勁地挑選work laboriously 辛辛苦苦;辛勤地工作dig laboriously 吃力地挖gather laboriously 勤奮地收集labour laboriously 艱難地勞動 返回 laboriously