71 繡花針沉海底 繡花針沉海底 ─無影無蹤。 無影無蹤 指找不到,看不見,沒有跡象。 指找不到 看不見 沒有跡象 An embroidery needle at the bottom of the sea ─ gone without a trace. This is used to describe something that is lost or has disappeared without a trace. 82