putting pen to paper
上杆 backswing (golf) 涉笔 putting pen to paper; to move the pen; to start writing 嗜血杆菌 hemophilus; hemophile bacteria ..
to start writing
三次曲线 cubic curve (geometry) 涉笔 to move the pen; putting pen to paper; to start writing 双曲 hyperbola; hyperbolic (function) ..
to move the pen
三次曲线 cubic curve (geometry) 涉笔 to move the pen; putting pen to paper; to start writing 双曲 hyperbola; hyperbolic (function) ..
involve much expense