In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

French was the language of diplomacy and culture in Europe between the 17th and 19th century and is still widely used .
From the 17th to the mid-20th century , French served as the pre-eminent international language of diplomacy and international affairs as well as a lingua franca among the educated classes of Europe .

The serous membrane covering the heart and lining the is called the pericardium , the serous membrane lining the and surrounding the lungs is called the pleura , and that lining the and the viscera is called the .
The serous membrane covering the heart and lining the mediastinum is referred to as the pericardium , the serous membrane lining the thoracic cavity and surrounding the lungs is referred to as the pleura , and that lining the abdominopelvic cavity and the viscera is referred to as the peritoneum .

He is former president and co-founder of the Bahrain Centre for Human Rights ( BCHR ) .

He is former president and co-founder of the Bahrain Centre for Human Rights ( BCHR ) , a nonprofit non-governmental organisation which works to promote human rights in Bahrain .