niotca的精選

可以組成單詞cation，意思是：n.正離子陽離子。例句：evethatonemusthaveacationforteaching.&nbsp&nbsp我相信一個人必須有教書的天分。2、ApplicationofMixed-bedwithCationLayerinShanxiProvince&nbsp&nbsp陽層混牀在我...