cut-section of a track circuit

例句：

1. 1. The engineer cut a sectionof the road to make way for theconstruction.
   工程师切割了一段路以便施工。
2. 2.The scientist conducted a segment of research onthe effects of pollution on wildlife.
   科学家对污染对野生动物的影响进行了一项研究。
3. 3. Theysliced the cake into several small pieces forsharing.
   他们将蛋糕切成几小块供大家分享。