Simmons: on Earth? on another source?

地球上？另一个能量源？

youdao

Another source of concern: the discovery of 20 tar balls off Key West,Florida on Monday.

VOA: standard.2010.05.18

Retail investors, desperate to find alternative sources of income in the face of record-low yields on bank deposits, are another source of demand for corporate bonds.

ECONOMIST: Buttonwood: Money for nothing | The

Real-estate agents who have sold properties in your area are another good source of information on home prices.

WSJ: Are Sellers' Appraisals and Inspections Overkill?--WSJ House Talk

But the Times seems to have gained access to the documents from another source and passed them on to the Guardian as well as National Public Radio.

FORBES: WikiLeaks Hits Pentagon Again With Leak Of 759 Guantanamo Prisoners' Files