encumbrance

英 [ɪn'kʌmbr(ə)ns; en-] 美[ɪn'kʌmbrəns]

• n. 累赘；妨害物

1. an onerous or difficult concern;

"the burden of responsibility"

"that's a load off my mind"

2. a charge against property (as a lien or mortgage)

3. any obstruction that impedes or is burdensome