one-way

劍橋詞典

[ 只用在名詞前面的形容詞 ]
travelling or allowing travel in only one direction
單程的；單向的，單行的
I drove the wrong way down a one-way street . 我在單行道上逆向行車。
How much is a one-way ticket to New York? 到紐約的單程票多少錢？
?a one-way ticket to sth

If something is a one-way ticket to an unpleasant situation , it will cause that situation to happen .
引發(fā)／導(dǎo)致（壞事）發(fā)生
A rejection of the peace deal would be a one-way ticket to disaster for the country . 反對和平協(xié)議將使國家陷入災(zāi)難。

A one-way relationship is not fair because only one person or group of the two makes any effort .
單方面的，一廂情愿的 返回 one-way