n. noun 名词;

v. verb 动词;

prep. preposition 介词;

pron. pronoun 代词;

conj. conjunction 连词;

adj. adjective 形容词;

adv. adverb 副词;

art. article 冠词;

aux. auxiliary 助词;

int. interjection 感叹词;

pl. plural 复数;

abbr. abbreviation 缩写