例句與造句

1. ( 4 ) there exist close relation between the floods season precipitation in northeast china and the anomalies of subtropical summer monsoon , the anomalies of cold air , sub - tropical anticyclone , polar front jet , north hemisphere general circulation anomalies in winter
   ( 4 )東北汛期降水與西南夏季風(fēng)、北方冷空氣、副熱帶高壓、極鋒急流、前期冬季環(huán)流異常密切相關(guān)。
2. It's difficult to find polar front jet in a sentence. 用polar front jet造句挺難的