1. The Arctic Ocean is considered by some to be a northern part of the Atlantic Ocean.
    有人认为北冰洋是大西洋北边的一个部分.

2. The Arctic explorers carried with them a lot of scientific instruments.
    去北极的探险家们随身带了许多科学仪器。

3. I dressed for spring and it´s positively arctic here.
    我穿的是春装, 而这儿的天气冷极了。