求助！这颗螺丝是哪里掉下来的？

<div layer1="img-s"></div><div class="tz-picture"><img src="http://club2.autoimg.cn/album/g34/M02/9E/26/userphotos/2026/09/22/07/ChxpWGqxuWOAEcKPACviJKdzdkc673.jpg" style="height:4080px;width:3060px"  /></div><div layer1="img-e"></div><br /><div layer1="img-s"></div><div class="tz-picture"><img src="http://club2.autoimg.cn/album/g34/M05/9E/1C/userphotos/2026/09/22/07/ChxpV2qxuWSAWWVFAETHfAqmtz8423.jpg" style="height:4080px;width:3060px"  /></div><div layer1="img-e"></div><br /><div layer1="text-s"></div><div class="tz-paragraph">前一天刚做完小保养，今天在副驾脚底下发现的[ahl_沮丧]有朋友知道是哪里掉下来的吗？好慌啊！</div><div layer1="text-e"></div><br />