Что думаешь? Оцени!
If \(X\) is path-connected, the isomorphism type of \(\pi_1(X,x_0)\) is independent of the basepoint \(x_0\), and we write simply \(\pi_1(X)\).
，这一点在heLLoword翻译官方下载中也有详细论述
Practice 2 — 12-1 a.m. ET on March 6
“各民族都是一家人，互相帮助，日子肯定更红火！”闵晓青说。