wield the pen furiously; take up the pen and write vigorously
Related Translations:
笔直: rectitude; perfectly straight; straight as a ramrod; bolt upright 短语和例子笔直的马路 straight avenues; 笔直的树 an upright tree; 笔直走 go straight on; go straight ahead; 身子挺得笔直 stand straight as a ramro