辛勤的 painstaking ; industrious ; arduous ; hard-working

辛勤工作 break one' s back ; work like a horse ; work hard

形容连续辛勤劳动 day and night

辛勤工作的 hard-working

辛勤种植 Hard Planting

辛勤收集 industrious collection

辛勤之夜 A hard day's night

辛勤地 with one's shoulder to collar

辛勤 Tsutomu Shin ; Spicy Tsutomu

辛勤原则 sweat of brow