dagger board

例句：

1. 1. She used a dagger board to cut through the thick fabric.
   她用匕首板切破了厚重的布料。
2. 2.The dagger board was designed to be easily carried and used in combat situations.
   匕首板设计得便于携带，并可在战斗情况下使用。
3. 3. During the party, she used her dagger board to create beautiful patterns on the tablecloth.
   派对上，她用她的匕首板在桌布上创作美丽的图案。