定位中
行：行动，办事；若：好象。指人在紧急关头，态度镇定，毫不慌乱。有时也指对坏人坏事听之任之，满不在乎。
[behave as if nothing had happened] 行:行动、举止。指在紧急关头上能够举止镇静,毫不慌乱。也形容对事情听之任之,无动于衷
