在(zai)(zai)數字化(hua)營銷日(ri)益重(zhong)要的(de)(de)今天,SEO(搜索(suo)引擎優化(hua))成(cheng)為了每個(ge)(ge)網(wang)站成(cheng)功的(de)(de)關(guan)(guan)(guan)鍵(jian)(jian)。而在(zai)(zai)SEO的(de)(de)實踐中(zhong),關(guan)(guan)(guan)鍵(jian)(jian)詞(ci)(ci)的(de)(de)選擇和運用至關(guan)(guan)(guan)重(zhong)要。人們常(chang)常(chang)將焦點(dian)集中(zhong)在(zai)(zai)主關(guan)(guan)(guan)鍵(jian)(jian)詞(ci)(ci)上,忽(hu)視了一個(ge)(ge)非常(chang)重(zhong)要的(de)(de)元素-二級關(guan)(guan)(guan)鍵(jian)(jian)詞(ci)(ci)。二級關(guan)(guan)(guan)鍵(jian)(jian)詞(ci)(ci)不僅(jin)···