常見例句Composed of calcium carbonate leached from dripping water, the stalagmite preserves a record of rainfall in this region. 石筍是由滴水中所含的碳酸鈣組成，因此保存了該地區(qū)的降雨記錄。carbonate leachn. 碳酸鹽浸出I make a carbon copy of my documents. 我用複寫紙複寫文件。Soft drinks contain carbon dioxide. 軟飲料中含有二氧化碳。I have some carbon paper somewhere or other. 我記得我在什麼地方放有複寫紙。She's a carbon copy of her sister. 她跟她姐姐一模一樣。 返回 carbonate-leach