How to write 殚

殚 dān 1 竭尽。 Exhaust; use up. - 例：～心。～力。～竭。～精竭虑。～见洽闻（指见闻广博）。 Example: exhaust one's mind; exert one's strength; completely use up; exhaust all thoughts and worries; have extensive knowledge and experience. 2 同本义 ([En.] exhaust) Same as the original meaning: exhaust. 3 灭;尽;毙 ([En.] extinguish; put out; destroy) Extinguish; finish; kill. 4 如:殚残(毁坏灭绝);殚闷(气绝昏倒) Such as:殚残 (to destroy completely);殚闷 (to faint from lack of air). 5 通“惮”。畏惧 ([En.] fear) Related to "惮", which means fear. 6 通“瘅”。病;祸 ([En.] fall sick) Related to "瘅", which means illness or calamity. 引： 1 《说文》：殚，极尽也。从歹，单声。 From "Shuowen": 殚 means to exhaust. Derived from 歹 and pronounced as a single sound. 2 《广雅》：殚，尽也。 From "Guangya": 殚 means to finish. 3 张衡《西京赋》：殚所未见。 From Zhang Heng's "West Capital Rhyme": I have exhausted all that has not been seen. 4 张衡《东京赋》：穆穆之礼殚。 From Zhang Heng's "East Capital Rhyme": The solemn ceremony is completely exhausted. 5 《吕氏春秋·本味》：相为殚智竭力。 From "Lüshi Chunqiu": They exhaust their wisdom and efforts upon each other. 6 《汉书·杜钦传》：殚天下之财。 From "Book of Han": Exhaust the wealth of the world. 7 《楚辞·忧苦》：犹未殚于《九章》。 From "Songs of Chu": Not yet exhausted with "Nine Songs". 8 《唐书·温彦博传》：彦博以爱国故，耗思殚神。 From "Book of Tang": Yan Bo is exhausted in spirit due to love for his country. 9 唐·柳宗元《捕蛇者说》：殚其地之出，竭其庐之入。(殚、竭同义，尽也。)。 From Liu Zongyuan's "On the Snake Catcher": Exhaust the output from the land and drain the input from the residence. (殚 and 竭 are synonyms, all meaning "use up"). 10 唐·李朝威《柳毅传》：不可殚言。 From Li Chaowei's "Liuyi's Legend": It is inadvisable to exhaust words. 例： 又如:殚心竭力(用尽心思，竭尽心力);殚虑(竭尽智虑);殚形(使人和物的状貌完全显现出来) Example: Such as:殚心竭力 (exhausting one's thoughts and efforts);殚虑 (exhausting one’s wisdom);殚形 (to completely reveal the appearance of people and objects).