是你的car door stopper 鬆了或壞了。
https://www.google.com/search?q=car+door+stopper&tbm=isch&ved=2ahUKEwjriYass_LpAhVHNVMKHaijCWAQ2-cCegQIABAC&oq=car+door+stop&gs_lcp=ChJtb2JpbGUtZ3dzLXdpei1pbWcQARgAMgIIADICCAAyAggAMgYIABAIEB4yBggAEAgQHjoECCMQJzoGCAAQBRAeOgUIABCxA1D1pwFYhdUBYMbuAWgAcAB4AIAB6gGIAbMRkgEGMC4xOC4xmAEAoAEB&sclient=mobile-gws-wiz-img&ei=b0feXquWEMfqzAKox6aABg&bih=703&biw=414&client=safari&prmd=isvn&hl=en-us