roll-call

n (time of) reading aloud of a list of names to check whether everyone is present 点名（时间）: Roll-call will be at 7 am. 上午7时点名.

rogues' gallery, roguish, roguishly, roguishness, roil, roister, roisterer, roistering, role, role (also role), role-play, roll, roll around, roll back, roll in, roll into, roll of honour, roll out, roll up, roll-bar, roll-on, roll-on roll-off, roll-top desk, roll-up, rolled gold, rolled oats, roller, roller bandage, roller towel, roller-blade, roller-coaster (Brit also switchback), roller-skate (also skate), roller-skating, rollicking, rolling stone, rolling-mill, rolling-pin, rolling-stock, rollmop, Rolls-Royce,