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あっという間に， あっと言う間に， あっというまに
1. in an instant, in a flash, in the blink of an eye, in no time at all, just like that
tbd
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を
1. indicates direct object of action
2. indicates subject of causative expression
3. indicates an area traversed
4. indicates time (period) over which action takes place
5. indicates point of departure or separation of action
6. indicates object of d...
表示动作的直接对象；表示经过的场所；表示离开或分开的点
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消す， けす
1. to erase, to rub out, to rub off, to cross out, to delete
2. to turn off (a light, TV, heater, etc.), to switch off
3. to extinguish (a fire, candle, etc.), to put out
4. to remove (a smell, pain, etc.), to eliminate, to get rid of, to relieve (pa...
熄灭（火、蜡烛等），扑灭；关闭（灯、电视、暖气等），关掉；擦除，擦掉，擦去，划掉，删除
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题；表示与另一选项（无论是否明确提及）形成对比；表示强调
