lend sth. to sth.困难

Biologists estimate that as many as 2 million lesser prairie chickens — a kind of bird living on stretching grasslands — once lent red to the often grey landscape of the midwestern and southwestern United States.

生物学家估计，曾有多达200万只小草原鸡——一种生活在广袤草原上的鸟类——为美国中西部和西南部常常灰蒙蒙的景观增添了红色。