skate on thin ice   (TTS發音)

take a chance； risk danger如履薄冰；冒險

    A politician would be skating on thin ice if he took a stand in opposition to a popular cause. 一個政治家如果反對群眾歡迎的事，那將是十分危險的。

    If I were you，I wouldn't do it that way. As it is，I think you're skating on thin ice. 要是我，我決不會那樣幹。就眼下情況看，我認為你是在冒險。