【新概念英语3第一课单词详解】新概念英语单词第一册innocence Lesson 1 Wild 1.adj. wild animals or plants live or grow in natural surroundings and are not taken care of by people. (动物或植物)
表一常见无机物英文名Chemical symbol Chemical name Related compounds, salts,propertiesS sulfur Elemental sulfurSO32-sulfite sulfurous acid 亚硫酸SO42-sulfate Sulfate,硫酸盐; sulfuric acid硫酸SO2sulfur dioxid