例句：

　　Carbolic acid is usually used for cleaning.

　　石炭酸常用于清潔。

　　His stomach might rupture from all the acid.

　　他的胃可能會(huì)因?yàn)樗羞@些酸而穿孔。

　　It is treated with acid before being analysed.

　　對它先用酸處理再進(jìn)行分析。

　　Cars cause pollution, both smog and acid rain.

　　汽車引起污染，既有煙霧又有酸雨。

　　These shrubs must have an acid, lime-free soil.

　　這些灌木必須要有酸性、無石灰的土壤。