double back

把…对折；往回跑

dory, DOS, dosage, dose, doss, doss-house, dosser, dossier, dot, dot matrix, dotage, dote, doting, dotingly, dotted line, dottiness, dottle, dotty, double, double agent, double bed, double bill, double bind, double bluff, double chin, double cream, double date, double Dutch, double entendre, double entry, double figures, double first, double pneumonia, double standard, double take, double time, double transitive verb, double up, double-barrelled, double-bass,