prep = (介)介系词;前置词,preposition的缩写 
pron = (代)代名词,pronoun的缩写 
n = (名)名词,noun的缩写 
v = (动)动词,兼指及物动词和不及物动词,verb的缩写 
conj = (连)连接词 ,conjunction的缩写 
s = (主)主词 
sc = 主词补语 
o = 受词 
oc = 受词补语 
vi = 不及物动词,intransitive verb的缩写 
vt = 及物动词,transitive verb的缩写 
aux.v = (助)助动词 ,auxiliary的缩写 
adj = (形)形容词,adjective的缩写 
adv = (副)副词,adverb的缩写 
art = (冠)冠词,article的缩写 
num = (数)数词,numeral的缩写 
int = (感)感叹词,interjection的缩写 
u = 不可数名词,uncountable noun的缩写 
c = 可数名词,countable noun的缩写 
pl = 复数,plural的缩写 
int. 感叹词,interjection的缩写 
abbr. 英文原意 abbreviation 缩写
