用“/”给下面句子断句。
一人虽听之，一心以为鸿鹄将至，思援弓缴而射之，虽与之俱学，弗若之矣。
一人/虽/听之，一心/以为/鸿鹄/将至，思/援弓缴/而射之，虽/与之/俱学，弗若之矣。
——I can hardly believe my eyes. Is that you, Lucy?——Yes. It has been almost 20 years______ we were together.
读我国四大地理区域（如图），回答
长江、黄河、澜沧江的发源地被称为“三江源”，三江源地区位于（ ）
Mount Tai is 1545 meters h ____ above sea level.
