<div layer1="text-s"></div><div class="tz-paragraph">本周新接的凯美瑞双擎，今天无意发现后排车底排气筒旁涂这白色的有弹性的胶，而且涂得跟狗啃的一样粗糙，问下这是啥？</div><div layer1="text-e"></div><br /><div layer1="img-s"></div><div class="tz-picture"><img src="http://club2.autoimg.cn/album/g5/M0D/0E/72/userphotos/2017/02/18/19/500_wKjB0lioNqWAOiROAAF3ZPNGD_Q401.jpg" style="height:0;width:0"  /></div><div layer1="img-e"></div><br /><div layer1="img-s"></div><div class="tz-picture"><img src="http://club2.autoimg.cn/album/g5/M0E/10/E0/userphotos/2017/02/18/19/500_wKgH21ioNqeAcBbjAAGpPkuvrF4656.jpg" style="height:0;width:0"  /></div><div layer1="img-e"></div><br />

凯美瑞双擎车底有白色的胶，这是啥？