As to respect of choice cooking range, must consider to avoid sootiness fire burn, of an efficient gas furnace and good and ventilated establishment taking lampblack chance is necessary.

• 至于选择炉灶方面，则必须考虑避免烟熏火燎，一个高效的煤气炉和良好通风设施的抽油烟机都是必要的。