first of all   (TTS發音)

before anything else首先

    One will be judged by one's speech first of all. 首先，察其言而知其人。

    If you want to speak good English， you should first of all listen to good English as often as possible. 如果想英語說得好，首先應當盡可能地經常聽好的英語。

    Firt of all，let's read the new words. 首先，讓我們讀生詞。