词语

老成持重阅历多经验丰富，遇事沉着稳重。例而老成持重坐靡岁月，终于无成者不可胜数。——清魏善伯《留侯论》英be experienced and prudent; be rich in years and sound of judgment;

少年老成指人年轻却很老练稳重。英an old head on young shoulders; be premature of the young;指年轻人朝气不足。英a young person lacking in vigour and drive;