欣然命笔[xīn rán mìng bǐ]
词典gladly set pen to paper：欣然命笔。
词典be happy to start writing：欣然命笔。
词典in one's happiness pen the following lines：欣然命笔。
词典write down as inspiration [feeling] dictates
欣然命笔[xīn rán mìng bǐ]
\u0039\u0031\u0031\u67E5\u8BE2\u00B7\u82F1\u8BED\u5355\u8BCD
gladly set pen to paper; be happy to start writing; in one's happiness pen the following lines; write down as inspiration [feeling] dictates