Good deeds are rarely known, while bad deeds spread far and wide quickly; good news travels slowly, bad news travels fast.
他帮助了很多人，但很少有人知道。可他犯了一个小错误，立刻就传开了，真是好事不出门，恶事传千里啊。
He helped many people, but few knew about it. However, as soon as he made a small mistake, it immediately spread around. It's truly a case of good deeds rarely being known, while bad deeds spread far and wide quickly.
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