greased slipway

例句：

1. 1. The oiled slipway was the only way to get through the narrow channel.
   油滑的船坞是穿过狭窄通道的唯一途径。
2. 2. The workers were carefully greased and slipped into their positions.
   工人们被仔细地润滑并滑入各自的岗位。
3. 3. The slipway was filled with water from the river, making it difficult for the boats to navigate.
   船坞被河水填满，使得船只难以航行。