back-to-back/ˌ· · ˈ·◄/ adj, adv 1 happening one after the other 连续的[地]: We played two concerts back-to-back. 我们连续开了两场音乐会。 2 with the backs of two things or people facing or connected with each other 背靠背的[地]: They stood back-to-back. 他们背靠背站立。 back-to-back houses 背靠背的房子