Smile and silence are two powerful tools [tu: l]. Smile is the way to solve many problems and silence is the way to avoid many problems.
微笑和沉默是两把利器：微笑解决很多问题，沉默避免许多问题。
Smile and silence are two powerful tools [tu: l]. Smile is the way to solve many problems and silence is the way to avoid many problems.
微笑和沉默是两把利器：微笑解决很多问题，沉默避免许多问题。
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