one-way

剑桥词典

[ 只用在名词前面的形容词 ]
travelling or allowing travel in only one direction
单程的；单向的，单行的
I drove the wrong way down a one-way street . 我在单行道上逆向行车。
How much is a one-way ticket to New York? 到纽约的单程票多少钱？
 a one-way ticket to sth

If something is a one-way ticket to an unpleasant situation , it will cause that situation to happen .
引发／导致（坏事）发生
A rejection of the peace deal would be a one-way ticket to disaster for the country . 反对和平协议将使国家陷入灾难。

A one-way relationship is not fair because only one person or group of the two makes any effort .
单方面的，一厢情愿的 返回 one-way