Chinese Idiom puzzle 10 (中文填字遊戲)
Formatted as a code block
(With U+3000 IDEOGRAPHIC SPACE)


　　殺　　輸肝剖膽　禮　　　　隔
群龍無首　打　　　　賢　赤　　牆
策　赦　　贏　席捲天下　子虛烏有
群　　波　要塞　土　士　之　　耳
力挽狂瀾　　翁　重　　賞心樂事　
　　　萬無一失　來者不善　　業　
魔高一丈　　馬　　　　罰　　線　
　　　　馬　焉　　　作惡多端　　
梅花樁　首　知足常樂　　行　　　
開　　似是而非　　而　　不脛而走
二郎神　瞻　福　　忘恩負義　　馬
度　乎　　　　　　返　荊　煮　看
　　其　胸無點墨　　　請　豆腐花
黔驢技窮　妄　　非戰之罪　燃　　
　　　兵刀之災　　死　　　萁　　
　　　黷　災　　　沙塵滾滾　　楓
勝之不武　　十里洋場　　開枝散葉

Down (numbers)

 1. 群策群力 People use their collective wisdom and abilities to work together
 2. 梅開二度 (something good) Happens twice
 3. 殺無赦 Give no quarter
 4. 神乎其技 Awesome skill
 5. 波瀾萬丈 Miles of waves
 6. 窮兵黷武 Overly militaristic; Wantonly engage in military ventures 
 7. 馬首是瞻 Follow the leader's direction
 8. 輸打贏要  Bad sportsmanship (Cantonese expression)
 9. 無妄之災 Unexpected disaster (with no fault of one's own)
 10. 塞翁失馬焉知非福 Misfortune may turn out to be a blessing in disguise
 11. 捲土重來 Return strongly (in high profile)
 12. 樂而忘返 Too happy and forgets the time to go
 13. 戰死沙場 Fight and die on the battlefield
 14. 敬賢下士 禮賢下士 (Someone in a high position) Can treat talented people with respect and courtesy
 15. 賞善罰惡 Reward the good, punish the bad
 16. 負荊請罪 Admit mistakes to the other party, ask for punishment and forgiveness
 17. 赤子之心 A heart as kind and pure as a child's
 18. 多行不義 Have done many bad things 
 19. 滾開 Get lost!
 20. 煮豆燃萁 Brother harming brother
 21. 事業線 Palm reading: 'Career line'
 22. 隔牆有耳 Someone could be listening
 23. 走馬看花 Looking at things roughly without seeing the details
 24. 楓葉 A national symbol of Canada

Across (letters)

 A. 輸肝剖膽 OR 輸肝瀝膽 Metaphor for being loyal to each other (Similar to 肝瞻相照)
 B. 群龍無首 Leaderless
 C. 席捲天下 Conquer and unify the world
 D. 子虛烏有 False things; fictional
 E. 要塞 Fortress
 F. 力挽狂瀾 To try hard to save a desperate crisis; Overcome impossible odds
 G. 賞心樂事 Pleasant activity
 H. 萬無一失 Will never fail; totally secure
 I. 來者不善 The visitor is not the friendly type
 J. 魔高一丈 The evil is always a step ahead ('道高一尺'下句)
 K. 作惡多端 Have done many evil deeds
 L. 梅花樁 See picture
 M. 知足常樂 People do not desire much would always be happy 
 N. 似是而非 Seems right on the surface, but isn't
 O. 不脛而走 Metaphor for the news spread quickly without promotion
 P. 二郎神 楊戩
 Q. 忘恩負義 Ungrateful
 R. 胸無點墨 Have no literary knowledge
 S. 豆腐花 The other name for Tofu brain (mostly in the Southen China regions) 
 T. 黔驢技窮 Metaphor for people who used up all his tricks, and have nothing left
 U. 非戰之罪 A famous quote from 項羽 after he lost his final battle, basically saying it was the heaven decided he would lose, not the fault of him fighting this war.  
 V. 兵禍之慘 兵刀之災 War disaster 
 W. 沙塵滾滾 heavy dust rolling
 X. 勝之不武 It is unfair and undesirable to win against an overmatched opponent.
 Y. 十里洋場 Referred to the Shanghai French concession area in the olden time. 
 Z. 開枝散葉 Idiom: (of trees) be luxuriant, be flourishing; (fig.) To have a lot of offsprings