他说这是保卫加拿大在北极地区利益的一种方法。
He said it was a way to defend Canada's interests in the Arctic.
youdao
It's a kind of method to protect Canda's interest in the Artic region.
狗拉的雪橇在北极地区很常用。
Sled pulled by dog is in common use in the Arctic.
中国到目前为止在南极地区建立了两个考察站。
China has so far built two research stations in Antarctica.
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