rucksack

(also knapsack, US also `backpack) n bag strapped to the back from the shoulders, used by hikers, climbers, etc 背包（远足者、 登山者等用的）. =>illus at luggage 见luggage插图. Cf 参看 haversack.

rubber plant, rubber stamp, rubber-neck, rubber-stamp, rubberize, rubberise, rubbery, rubbing, rubbish, rubbishy, rubble, rubella, Rubicon, rubicund, rubric, ruby, ruby wedding, RUC, ruche, ruched, ruck, ruckus, ructions, rudder, ruddily, ruddiness, ruddy, rude, rudely, rudeness, rudiment, rudimentary, rue, rueful, ruefully, ruefulness, ruff, ruffian, ruffle, rug, Rugby,