时间，半期的是大约1秒，12秒，分钟小时和天。

And the time half-lives are 1 second roughly, 12 seconds, minutes, hours and days.

youdao

尽管营养不良很少被当作直接的死因，但超过一半的儿童期死亡与营养不良有关。

Malnutrition is estimated to contribute to more than one third of all child deaths, although it is rarely listed as the direct cause.

youdao

在亨利八世时期，有一半的孩子活不到15周岁。

And in Henry's time, up to half of all children died before age 15.

youdao