1. After field sideline test, PALL filter with high filtration accuracy was selected for filtering and separating raw gas. 经过现场侧线试验，选择了过滤精度高的PALL过滤器过滤分离原料天然气。
2. The technician keys the line to the physical first-down marker that game officials stake at the sideline for each series of downs. 球场工作人员会为每一次的首攻在边线立桩，技术人员便依此键入黄线资料，记录实际的首攻标记。
3. The dinner also included a surprise speech by White House Press Secretary Tony Snow who thanked people for their support weeks after being sideline with a recurrence of cancer. 晚宴上，还有白宫新闻发言人托尼斯诺还的一个出人意料的演讲对人们在癌症复发的数周里给予的支持与鼓励表示感谢。
英英解释
n.
1. a line that marks the side boundary of a playing field
2. an auxiliary line of merchandise
3. an auxiliary activity v.
1. remove from the center of activity or attention; place into an inferior position
