Morning, light rain is still painstaking work of his sister.
今早，小雨妹妹还在不辞辛苦的.工作。
The transition from planned economy to share system is certainly a painstaking course.
从计划经济到股份制的过渡自然是个艰难的过程。
She is making painstaking efforts to learn Chinese.
她在刻苦学习中文。
Full marks are hard to come by; you must make painstaking efforts.
得到满分是十分困难的，你必须尽最大努力。