bǐ笔writing brush; write; strokeHSK 2 · Frequency 4.5Meaningswriting brush; write; strokeRelated words笔记笔记本笔试笔者笔路笔体笔替笔下笔答笔政笔名笔录Example sentences这是一笔钜款。哪里有伏笔？请把笔帽盖好。