同义词： buttocks nates arse butt backside bum buns can fundament hindquarters hind end keister posterior prat rear rear end rump stern seat tail tail end tooshie tush bottom derriere fanny ass

"behind by two points"

• in or to or toward the rear

  "he followed behind"; " seen from behind, the house is more imposing than it is from the front"; " the final runners were far behind"

• remaining in a place or condition that has been left or departed from

  "when he died he left much unfinished work behind"; " left a large family behind"; " the children left their books behind"; " he took off with a squeal of tires and left the other cars far behind"

• of timepieces

  "my watch is running behind"

  同义词： slow

• in or into an inferior position

  "fell behind in his studies"; " their business was lagging behind in the competition for customers"

• in debt

  "he fell behind with his mortgage payments"; " a month behind in the rent"; " a company that has been run behindhand for years"

  同义词： behindhand in arrears