n. 相反, 背面, 倒退, 挫折, 失败
a. 反面的, 相反的, 反向的, 颠倒的
vt. 使颠倒, 使逆转, 使倒退, 使反向
vi. 倒退, 反向, 倒转, 反转
[计] 反转
英文释义
n. a relation of direct opposition
n. the gears by which the motion of a machine can be reversed
n. an unfortunate happening that hinders or impedes; something that is thwarting or frustrating
n. the side of a coin or medal that does not bear the principal design