alongside /əˈlɔŋˈsaid/ I. prep. 1.在…旁边，沿着…的边：ships anchored alongside a dock 停泊在码头边的船 2.和…在一起：fight alongside sb.与某人并肩战斗 ‖II. adv. 在旁边，沿着边，并排地：We brought our boats alongside. 我们把船并排起来。