However, when he returned some years later, the colourful coral reefs were dead and grey.

然而，多年以后，当他回来时，艳丽多彩的珊瑚礁已经死了，变成灰色的了。

youdao

However, when he returned some years later, the colourful coral reefs were dead and grey.

然而，多年以后，当他回来时，艳丽多彩的珊瑚礁已经死了，变成灰色的了。

youdao