He set aside all distracting thoughts and focused on work.
Tips
usage
摒 rarely appears alone; it most commonly occurs in compounds: 摒弃 (bìngqì, to abandon), 摒除 (bìngchú, to get rid of), and 摒挡 (bìngdàng, to put in order).
memory
Think of 摒 as 手 (hand) + 屏 (screen/shield): you use your hand to screen out what you don't want.
