within

We should have the test results back within 24 hours..我们24小时之内应该可以拿到化验结果。

He fell sick and died within a matter of weeks..他病倒了，不出几星期就死了。

Within an hour of our arrival Caroline was starting to complain..我们到达还没有一小时，卡罗琳就开始抱怨了。

The real dangers to these rebels came from within..对于这些叛乱分子真正的危险来自内部。

within oneself,在心中；保留体力的

from within,从里面，从…的内部

come within,在…范围内