shadowing https://www.thetaiwaneseway.com/post/50-%E8%BF%91%E6%B3%81%E6%9B%B4%E6%96%B0%EF%BC%81%E6%9C%80%E8%BF%91%E7%99%BC%E7%94%9F%E7%9A%84%E5%9B%9B%E4%BB%B6%E4%BA%8B-%E5%8F%B0%E6%B9%BE%E8%8F%AF%E8%AA%9E-%E4%B8%AD%E5%9B%BD%E8%AA%9E%E4%B8%AD%E7%B4%9A%E3%83%AA%E3%82%B9%E3%83%8B%E3%83%B3%E3%82%B0%E7%B7%B4%E7%BF%92%EF%BC%88%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%97%E3%83%88%E4%BB%98%E3%81%8D%EF%BC%89-intermediate-mandarin-lessons-b1