Rude Commuter Behavior Caught Happening on New York Subways
0:09 nail clippers 爪切り
Mom who's been there helps teen moms with special gift
3:05 you can't slow nail growth either but you can trim your nails as long as you're doing it right which you're probably not. the nail clipper was invented in the late 19th century. 爪の成長を遅くすることは出来ないけど、切ることは出来る。爪切りは今から百年以上前に発明された。
Why Do Fingernails Grow Faster Than Toenails?