half life是什么意思
名词（放射性）半衰期
1. 911查询·英语单词
1. Although people today have a busy life, taking half an hour every week to make a flower arrangement can bring joy.
2. And almost half said if they could change one thing about their life it would be their body.
3. It takes 30 years for this contaminant to lose its power by half - what experts refer to as a " half life ".
4. Of the 303 psoriasis patients surveyed, over half claimed sex life and courtship were affected.
5. But my father is 80 years old and had been diabetic for more than half his life.
6. The second half starts with his dismissal and emphasizes his travelling life and spreading his philosophy among the people.
7. More than half said they expected to have an eventful sex life.
8. He dared not take half a step out of the fence, but he still lived a rich and unusual life.
9. He added that his life had changed since his half brother was elected president and the glare of the media hit him.
10. half life是什么意思
10. " The second half of my life will be spent with cars, " Wang declared.
noun
1. the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate)
Synonym: half-life