常見(jiàn)例句The sweet gum, sour gum, and some Australian eucalyptus trees are gum trees. 甜膠樹(shù)、酸膠樹(shù)和一些澳大利亞的尤加利樹(shù)都是產(chǎn)樹(shù)膠的樹(shù)。The milk has curdled and become sour. 牛奶凝結(jié)變酸了。Many people like to chew mint gum in the summer. 許多人喜歡在夏天嚼薄荷口香糖。Sour grapes are made into raisins or wine. 酸葡萄就做成葡萄干或葡萄酒。These apples are not ripe; they are sour. 這些蘋果不熟,是酸的。Consisting of or containing gum. 樹(shù)膠的由樹(shù)膠組成的或包括樹(shù)膠的 返回 sour gum