听众 Cinta 来信询问单词 “factor、element、component” 和 “ingredient” 的区别。名词 “factor” 的意思是 “因素”，它强调对结果产生的影响，而 “element、component” 和 “ingredient” 在表达 “事物的组成要素” 时几乎没有区别。听节目，学习这四个词的用法。

Research & Development has always been a steadfast strategy for toothpaste market. According to our last weekly insight for oral care products--Global toothpaste market innovative developing trend, ...