如 ㄖㄨ ˊ rú 坐 ㄗㄨㄛ ˋ zuò 针 ㄓㄣ zhēn 毡 ㄓㄢ zhān 如 ㄖㄨ ˊ rú 坐 ㄗㄨㄛ ˋ zuò 針 ㄓㄣ zhēn 氈 ㄓㄢ zhān lit. as if sitting on pins and needles fig. to be in an uncomfortable situation