【典源】《庄子·盗跖》:“尾生与女子期于梁下,女子不来,水至不去,抱梁柱而死。”【释义】尾生与某女相约在桥下见面,女子没来,河水上涨,尾生便抱着桥柱,直到被水淹死。后遂用“尾生抱柱”“抱柱”“抱桥”“柱下期信”等指坚守信约。 [Code source] “Zhuangzi Pirates of the plantar”: “tail and the girl period under the beam, the woman does not come, the water does not go, hold the beam to death.” “Interpretation of the tail and a woman similar Meet under the bridge , The woman did not come, the river rose, holding the bridge at the end until the water was drowned. After the ”“ ”hold the post “ ”hold the post “ ”hold the bridge “ ”post next letter " and other means stick to the letter.