role

n.角色；作用，任务

rode, rodent, rodeo, rodomontade, roe, roebuck, roentgen (also rontgen), Rogation Sunday, rogations, roger, rogue, roguery, rogues' gallery, roguish, roguishly, roguishness, roil, roister, roisterer, roistering, role (also role), role-play, roll, roll around, roll back, roll in, roll into, roll of honour, roll out, roll up, roll-bar, roll-call, roll-on, roll-on roll-off, roll-top desk, roll-up, rolled gold, rolled oats, roller, roller bandage,