2.TT especially American EnglishAmE a one-way ticket is for travelling from one place to another but not back again 〔车票等〕单程的OPP round-tripSYN British English single
3.ONLYa one-way process, relationship etc is one in which only one person makes any effort or provides anything 〔过程、关系等〕单方面的
one-way system• I weighed in on Monday, got bloodpressured, then drove through blindingrain into the Guildford one-way system.• The first option involved simply eliminating through traffic, principally through the use of one-way systems.• Unfortunately to get there I had to negotiate an amazingly convoluted one-way system.• The tramway station is now effectively a traffic island, surrounded by a one-way system and linked by pedestriancrossings. 3.• Enter the one-way system and take the third right into Catherine Street, Percy Street being your second left turning.• Moreover, if one-way systems are introduced, cycle use is discouraged and safety is decreased by the increased vehicle speeds.• The one-way systems round here can be prettyconfusing.