keep quiet   (TTS發音)

1. remain silent 安靜

    The doctor ordered the patient to keep quiet a few days. 醫生命令那位病人靜養幾天。

2. keep secret 保守秘密

    If I tell you the story，will you promise to keep it quiet？假如我把這件事告訴你，你會保守秘密嗎？