porthole

例句：

1. 1.The ship had a large porthole in the wall.
   这艘船的墙上有一个大窗户。
2. 2.He sat by the porthole and watched the stars.
   他坐在舷窗旁，看着星星。
3. 3. The captain ordered everyone to close their portholes.
   船长命令每个人都关闭他们的舷窗。