side-track转变话题;改变话题
WALL SIDE MOUNTED TRACK SYSTEM一面墙上安装跟踪系统;墙上安装轨道系统
upper side track上边声迹
station side track车站侧线
off side track外侧履带
side track WESTBANK侧线
Wrong Side of the Track下流社会
track side abrasion钢轨侧磨
V-T（及物动词） If you are sidetracked by something, it makes you forget what you intended to do or say, and start instead doing or talking about a different thing. 使...改变想法; 使...转移话题
He'd managed to avoid being sidetracked by Schneider's problems.
他最终总算没有由于施奈德的问题而分心。