PONS词典中的例句（已经编辑处理）
单语范例（未经PONS编辑处理）
The area is densely populated with retail and banking structures on all four corners.
en.wikipedia.org Every self-adjoint operator is densely defined, closed and symmetric.
en.wikipedia.org In densely populated areas this is done on foot.
en.wikipedia.org According to geologists and researchers, the richest, most densely exploited area occupied a narrow zone along the southwest flank of the range.
en.wikipedia.org The upper and under leaf surfaces are densely hairy when young and become smooth.
en.wikipedia.org