归来: to return, to come back...
冰激凌: ice cream...
银牌: silver medal...
统统: totally...
换取: to obtain (sth) in exchange, to exchange (sth) for (sth else)...
冷冻: to freeze, to deep-freeze...
万无一失: surefire; absolutely safe (idiom)...
扩张: expansion, dilation, to expand (e.g. one's power or influence), to broaden...
床: bed, bed-shaped thing as a support for sth...