prep = 介词
pron = 代名词
n = 名词
u = 不可数名词
c = 可数名词
v = 动词
vi = 不及物动词
vt = 及物动词
conj = 连接词
aux.v = 助动词
abbr.=缩写词
a = 形容词
adv = 副词
art = 冠词
num = 数词
int = 感叹词
pl = 复数
s = 主词
sc = 主词补语
o = 受词
oc = 受词补语
prep = 介词
pron = 代名词
n = 名词
u = 不可数名词
c = 可数名词
v = 动词
vi = 不及物动词
vt = 及物动词
conj = 连接词
aux.v = 助动词
abbr.=缩写词
a = 形容词
adv = 副词
art = 冠词
num = 数词
int = 感叹词
pl = 复数
s = 主词
sc = 主词补语
o = 受词
oc = 受词补语