zhuān : xué : jīn > zài qián
mùlù
yīngwénjièshì
  1. n.:  antecedency,  formerly
  2. adj.:  ahead
  3. adv.:  antecedently,  before,  supra,  forward
  4. prep.:  afore,  fore
jìnyící
qián tóu , zài kōng jiān huò shí jiān shàng
bāo hán cí
zài qián de