它可以自由地通过，比方说，从细胞外到细胞里，或从膜的一边到另一边。
It can pass freely, let's say, from the outside to the inside of the cell, or from one side to another of a membrane.
纬度同样是从拉丁语而来，是指横向，从一边到另一边的宽度。
Latitude is also from Latin and is related to "lateral" that is from side to side and refers to the width.
大多数从街道的一边到另一边，就在柏油路下面。
Most of them run from one side of the street to the other, just under the asphalt road.
还有其他的计划，象从世界的一边到另一边通过太空的旅行。
There are other plans, like voyages through space from one side of the world to the other.
还有其他的计划，象从世界的一边到另一边通过太空的旅行。
There are other plans, like voyages through space from one side of the world to the other.
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