英语俚语：on pins and needles
英文释义：worried or excited about something; anxious; in suspense;中文释义：pin 是大头针，needle 是缝衣针。一个人“on pins and needles”，是指由于某个原因而万分紧张，坐立不安，如坐针毡。
例句：
Many famous actors are on pins and needles before the curtain opens for a play.
在帷幕拉开前, 许多著名的演员感到坐立不安。
