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...o a frame, one behind the other. The term "bike" is derived from the word "bicycle", which has its origins in the French language. ...ened form of "bicycle", which was coined in France in the 1860s. The term "bicycle" itself is derived from the Greek words "bi" (meaning "two") and "kyklos" (

...nough hemoglobin, the compound that carries oxygen from the lungs to other parts of the body ...ifocal]] - a lens that corrects both near and distant vision by having two parts with different focusing strengths