For example, the ancient city of Venice,Italy has long been threatened by rising sea levels.

VOA: special.2009.04.22

Another popular type, the quill mum,has long, straight petals like a tube or needle.

VOA: special.2010.06.29

And,the expression swan song has long been a part of the English language.

VOA: special.2010.04.11

But its power over Internet and wireless communications has long been questioned.

VOA: special.2010.04.09

This large museum has long rooms with curved or vaulted ceilings.

VOA: special.2009.12.13

The coast of Nigeria has long been a high risk area.

VOA: special.2009.05.27

Talking on the phone has long been an issue.

VOA: special.2009.08.07

From Nazis to modern-day criminals, Switzerland's legendary bank secrecy has long been exploited by those with assets to hide.

VOA: standard.2009.08.19

The decades-old U.S.economic embargo of the communist-run island has long-irritated other nations in the Americas, including many close U.S.allies.

VOA: standard.2009.04.15

Simmons say Havana has long relied on short wave radio to send encoded messages using a system that converts letters into numbers.

VOA: standard.2009.06.06

The story of that forced march has long been taught around the world as a brutal prelude to the Khmer Rouge's terror.

VOA: standard.2010.04.19

Egypt,with 83 million people, is the most populous Arab nation, and has long been the intellectual and cultural capital of the Arab world.

VOA: standard.2009.05.09

Stuttering's cause has long been a mystery, but it has frequently been diagnosed as a psychological problem.

VOA: standard.2010.02.11

In the life sciences, the journal's editors noted advances in gene therapy something that has long seemed on the verge of a breakthrough.

VOA: standard.2009.12.24