Not everyone agrees on the number of Americans who are homeless.Estimates range anywhere from 600000 to 3 million.Although the figure may vary, analysts do agree on the matter: that the number of the homeless is increasing.老师们，请问这里的anywhere是什么用法？
Tom, a sometime delivery driver, lives with his mother.1. a sometime delivery driver放在Tom的后面，是作什么成分呢？2. a sometime delivery修饰driver，delivery和driver都是名词，两个名词可以挨在一起写吗？
Therefore, cargo insurance is an activity aiming at moving the risk from the exporters and importers to the underwriters.老师好，这里的activity是物，为什么用aiming不用aimed?
Translating consists in reproducing the closest natural equivalent of the source-language message, first in terms of meaning, second in terms of style.这里的first和second是副词修饰介词吗？还是省略了成分。