tā / zuǐ shàng / shuō zhe / hěn huà / shí jì shàng / yì zhí / zài / dān xīn / péng you / de / ān quán

她嘴上说着狠话，实际上一直在担心朋友的安全。

She spoke harshly, but in reality she had been worried about her friend's safety all along.