Dspeak强调说话的能力，一般跟语言。say一般重说话的内容。talk强调谈论。tell是告诉。用tell。tell与be或beableto连用是含义是分辨、分清例如：Ican'ttellthedi
learntosmileSmilemakesrheearthbetter.Ifwecanalwayssmileatothers,nomatterwhoheorsheis,nomatterwhatheo
