Blooms in the ocean may cover hundreds of square kilometers and are easily visible in satellite images.

发生在海洋中的水华可以覆盖数百平方公里，而且很容易在卫星图像中观测到。

youdao

During the droughts of 1997 and 1998, which were linked to El Niñ o, an irregular warming of the Pacific Ocean, 39,000 square kilometres of Amazonian forest were burned by such fires.

在1997年和1998年间，因厄尔尼诺现象，即太平洋的不规律升温现象，发生了多次旱灾，在此期间，39000平方公里的亚马逊森林被类似的大火焚毁。

youdao

During the droughts of 1997 and 1998, which were linked to El Niño, an irregular warming of the Pacific Ocean, 39, 000 square kilometres of Amazonian forest were burned by such fires.

在1997年和1998年间，因厄尔尼诺现象，即太平洋的不规律升温现象，发生了多次旱灾，在此期间，39000平方公里的亚马逊森林被类似的大火焚毁。

youdao

The only detail is a small stream of water running through the middle of the square towards the Pacific Ocean.

VOA: special.2009.12.13

They were alone on sixty-four million square miles of ocean.

VOA: special.2011.05.04

The Institute for Cetacean Research harvests whales within the Southern Ocean Sanctuary, fifty million square kilometres designated a protected area by the I.

NEWYORKER: Neptune��s Navy

The first Polynesian voyagers used indigenous scientific astronomical knowledge, harnessing the night sky and the environment to guide them across 162 million square kilometres of ocean.

UNESCO: Mata Ora : The Living Knowledge 2009

With 1.37 million square miles of ocean holdings, Kiribati has been vulnerable to overtures from the EU to sign a separate, less-stringent access pact.

WSJ: David Walter: The Great Pacific Tuna Cartel