He served his patients well and, without even knowing it, he was free from concern over life and death.

他真诚服务病人，又在不知不觉中堪破了生死。

youdao

Radioactive iodine in food is of immediate concern, but it has a relatively short half-life and will naturally decay over a short time frame.

食品中的放射性碘直接引起人们的关注，但是它的半衰期相对较短并将在短时间内自然衰变。

youdao

The aesthetic kernel manifested in Shandong's literature is the strong sense of social participation and the consistent concern over real life and the destinies of average people.

山东文学所体现的美学精神的基本内核，是强烈的社会参与意识及对于现实生活和普通人生命运的执着关注。

youdao

The Arab League, notably silent about Syria, was suddenly emboldened to announce its own concern over the loss of civilian life.

ECONOMIST: Syria and the region

But other times, I realize that my concern over spending has held us back from living in the moment or enjoying life experiences that we could probably afford.

WSJ: The Price of Being Too Thrifty