In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

Chukchi Sea ( Russian : , ) , sometimes referred to as the Chukotsk Sea or the Sea of Chukotsk , is a marginal sea of the Arctic Ocean .
Chukchi Sea is a marginal sea of the Arctic Ocean .