descriptive · appearing or occurring in a continuous sequence or in great numbers, typically referring to abstract obstacles

尽管面临重重困难，他依然没有放弃。

descriptive, particle · with great force, weight, or intensity; in a severe or serious manner

他重重地把书摔在桌子上。

descriptive · consisting of many layers or overlapping tiers, often used for physical scenery or dense barriers

前方山峦重重，云雾缭绕。