three wood slice cross section with tree rings that show age

【那些英语课上听过的歌曲】lemon tree--灌木林-默认收藏夹-哔哩哔哩

trunk of pinus elliottii or hairy spurge slash pine tree rings

texture of a sawn christmas tree close-up with annual rings

the pear blossoms fluttering in the sky fell on the old tree