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(human) life
人命救助のために消防士が火の中に入った。
Firefighters entered the fire to save lives.
人命を第一に考えて避難指示が出された。
Evacuation orders were issued putting human life first.
自然災害で多くの人命が失われたのは悲しい。
It's sad that many lives were lost in the natural disaster.