常見(jiàn)例句雙語(yǔ)例句Aim: To investigate therapy methods for children With recurrent respiratory tract infection (RRI).目的：探討治療反復(fù)呼吸道感染（RRI）的方法。Recurrent respiratory tract infection (RRTI) is one of the common and frequently-occurring disease.反復(fù)呼吸道感染是當(dāng)今兒科的常見(jiàn)病、多發(fā)病之一。Objective To investigate the relationship between the serum mannose-binding lectin(MBL) levels, gene polymorphisms and recurrent respiratory tract infection (RRTI).目的探討血清甘露聚糖結(jié)合凝集素（MBL）水平及基因多態(tài)性與兒童反復(fù)呼吸道感染（RRTI）的關(guān)系。 返回 recurrent respiratory tract infection