Governor Gavin Newsom says some energy users and utilities will be allowed to tap backup power sources.

州长加文·纽森说，一些能源用户和公用事业公司将被允许使用备用电源。

In the past couple of decades, though, scientists have learned to tap another, richer source of information: ancient genomes.

虽然在过去几十年里，科学家已经学会利用另一个更丰富的信息来源：远古基因组。

There are teams of innovators right now in the field that are working on figuring out how to most efficiently and effectively tap this enormous heat source beneath us.

现在有些创新团队在实地努力想办法用最有效率和效益的方式开采我们脚下这个巨大的热能来源。

Confronted by military and naval expenditures of appalling magnitude, rising from $35,000,000 in the first year of the war to $1,153,000,000 in the last year,the administration had to tap every available source of income.

面对骇人听闻的军事和海军开支，从战争第一年的 3500 万美元增加到去年的 11. 53 亿美元， 政府不得不动用一切可用的收入来源。