环

环

"环" means "ring" or "circle."

Here, '环' refers to a 'circle' or 'loop', describing the subway line's shape that loops around the city.

这个城市的环线地铁方便了居民的出行。

The circular subway line in this city facilitates residents' travel.

In this sentence, '环' is used to mean 'ring', describing a physical object often worn around something.

请戴好安保环以确保安全。

Please wear the safety ring to ensure security.

Here, '环' is used in '环视', meaning 'to look around', referring to viewing in all directions.

我们站在观景台环视整个城市。

We stood at the observation deck and looked around the entire city.