圣诞老人通常在12月24日寒冷的夜空中航行，而不用罗盘或地图来规划路线。
Santa traditionally navigates the frosty night skies on December 24th without using a compass or a chart to plot his course.
圣诞老人通常在12月24日寒冷的夜空中航行，而不用罗盘或海图来规划路线。
Santa traditionally navigates the frosty night skies December 24th without using a compass or a chart to plot his course.
首次在空中航行的飞行器是气球。
这一飞船将在太空中航行数小时并且上升几英里的高度。
This spacecraft will sail a few hours in space and gain a few miles in altitude.
所以有人建议我们应该阻止不必要的空中航行，比如旅游，而不是去限制汽车。
So some people think that we should discourage non-essential flights, such as tourist travel, rather than to limit the use of cars.
近岸的海面上，有一条帆船在幽暗中航行，看上去像是悬挂在半空中的幽灵船。
Close to shore, a vessel hovers in the gloom like a ghost ship suspended in mid-air.
近岸的海面上，有一条帆船在幽暗中航行，看上去像是悬挂在半空中的幽灵船。
Close to shore, a vessel hovers in the gloom like a ghost ship suspended in mid-air.
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