| 释义 |
flat as a tack (as) flat as a tackDemoralized or unenergetic. She's been flat as a tack ever since she heard that she didn't get into her top choice school.See also: flat, tackflat as a tack in very low spirits or lacking in energy. informal The idea underlying the expression is of a tack that has been hammered in so that none of it protrudes.See also: flat, tack |