英漢例句雙語(yǔ)例句Why doi birds fly south?鳥(niǎo)爲(wèi)什麼往南飛?。Why do birds fly south?鳥(niǎo)爲(wèi)什麼往南飛?。www.zk168.com.cnWhy do birds fly south for the winter?爲(wèi)什麼鳥(niǎo)兒在鼕天的時(shí)候飛往南方？blog.sina.com.cn原聲例句Birds fly south because they know winter is coming.birds fly south更多例句詞組短語(yǔ)短語(yǔ)The Birds Fly South 第十六章birds fly south更多詞組