例句與造句

1. It is estimated that in about 100 million years the family will have dispersed to a degree where it cannot be separated from the background population of asteroids.
2. I am looking for a source to find the approximate numbers of various ethnic background populations of New York, NY . The specific populations whose numbers I would like to ascertain:
3. The Flora family is very broad and gradually fades into the background population ( which is particularly dense in this part of space ) in such a way that its boundaries are very poorly defined.
4. An independent study published in the October 2007 issue of the " Journal of Medical Ethics " reports there was " no evidence of heightened risk for the elderly, women, the uninsured, people with low educational status, the poor, the physically disabled or chronically ill, minors, people with psychiatric illnesses including depression, or racial or ethnic minorities, compared with background populations ."
5. An October 2007 study, published in the Journal of Medical Ethics, found that " rates of assisted dying in Oregon and in the Netherlands showed no evidence of heightened risk for the elderly, women, the uninsured ( inapplicable in the Netherlands, where all are insured ), people with low educational status, the poor, the physically disabled or chronically ill, minors, people with psychiatric illnesses including depression, or racial or ethnic minorities, compared with background populations.
6. It's difficult to find background population in a sentence. 用background population造句挺難的