bagging-off spout

例句：

1. 1. The bagging off spout was the only way to get throughthe narrow passage.
   袋口是穿过狭窄通道的唯一方式。
2. 2. The bagging off spouthad a strong suction force that couldpull things out of the bag.
   袋口有很强的吸力，可以把东西从袋子里吸出来。
3. 3. The bagging off spoutwas designed to prevent leaks and ensurethe contents were secure.
   袋口设计用来防止泄漏并确保内容物安全。