原级：annul
现在分词：annulling
过去分词：annulled
过去式：annulled
annuls
1. 环行物. 环壮裂纹：Annual dose 年剂量 | Annuls 环行物. 环壮裂纹 | Anode 阳极
1. It annuls a stipulation that allows officials to ask statisticians to change incorrect figures.