4.The rider pulled on the reins, and the horse stopped.
骑马的人拉紧缰绳,马停住了。
5.The banks are threatening to pull the plug on the project.
银行威胁说要停止这个计划。
6.In the esophagus, the mucosa collapses against the distal end of the endotracheal tube, thereby limiting the ability to fully pull back on a syringe or for a flexible compressed bulb to reexpand.