biǎo míng yǐ shōu dào tā de lái xìn



nínshìfǒuzàixúnqiú： 表明 表明已收到 表明已收到他的来信 gèngduōjiéguǒ...

yīngwénjièshì:   Biaoming Be in receipt of His Laixin v.   acknowledge his letter