Morning, light rain is still painstaking work of his sister.
今早，小雨妹妹還在不辭辛苦的工作。
The transition from planned economy to share system is certainly a painstaking course.
從計劃經濟到股份制的過渡自然是個艱難的過程。
She is making painstaking efforts to learn Chinese.
她在刻苦學習中文。
Full marks are hard to come by; you must make painstaking efforts.
得到滿分是十分困難的，你必須盡最大努力。