The ice-free port is very important for trade.

不冻港对贸易非常重要。

This ice-free port is navigable all year round.

这个不冻港全年都可以通航。

Because it is an ice-free port, the harbor never closes.

由于是不冻港，这里的港口从不关闭。

They chose to build a new dock at the ice-free port.

他们选择在不冻港建立新码头。

The country relies on its only ice-free port for import and export trade.

这个国家依赖其唯一的不冻港进行进出口贸易。

Zhanjiang is an ice-free harbor.

湛江是一个不冻港。

Zhanjiang is an ice - free harbor.

湛江是一个不冻港.

Yes, Shanghai is an ice-free port.

是啊，上海港是一个不冻港。

Yes, Shanghai is an ice - free port.

是啊, 上海港是一个不冻港.

It is a newly built ice-free harbor.

它是新建的不冻海港。