"work on"@en-us . "02415039-v"^^ . "0"^^ . "work at"@en-us . . "to exert effort in order to do, make, or perform something; \"the child worked at the multiplication table until she had it down cold\""@en-us . . . "202415039"^^ . . "202342052"@en-us . . . "work at"^^ . . "0"^^ . .