鱼贯而入

yúguànérrù

鱼贯而入 — yúguànérrù

1. to walk in in a line; to enter one after another (in single file)

   观众鱼贯而入，座无虚席。 guānzhòng yúguànérrù zuòwúxūxí — The audience entered in single file, and there wasn't an empty seat.