(since sb was) in short pants BrE informalsince someone was a very young boy（自从某人）还是小孩，未成年:•I've known Eric since he was in short pants.埃里克小的时候我就认识他了。⇒do sth by the seat of your pants at SEAT¹ (10)⇒catch sb with their pants down at CATCH¹ (6)⇒wear the pants / trousers at WEAR¹ (7) |