由于船要在极地地区航行，那么也需要动力装置以满足穿越冰海的需求。

As this boat will navigate the Polar Regions, it was necessary to have motors to travel through the sea ice.

youdao

气候变暖让北极熊受到威胁是因为他们需要冰海来捕捉海豹，但是一个暖和的气候对因纽特人会带来很多麻烦。

Polar bears are threatened because they use sea ice as a platform from which to hunt seals. But a warming climate brings many problems for the Inuit.

youdao

随着更多的冰融化，更大的深色无冰海面被露出。它们会吸收更多的热量，从而加剧冰的融化。

As more ice melts, more dark open water is exposed, which absorbs more heat, accelerating the melting.

youdao