second-hand
GEPT 中級
B1adjective
already owned or used by someone else; not new
She bought a second-hand bicycle for half the original price.
二手的；用過的
B1adverb
from a previous owner rather than new
Most of my textbooks were bought second-hand from older students.
以二手方式；從前任物主取得
B2adjective
learned from other people rather than from your own experience
I only have second-hand knowledge of the accident, so I may be wrong about the details.