shade of green, algae. 綠色系, 藻類

Going green? The Olympic water polo pool has started turning green - just like the diving pool next door did last night
Rio 2016 farce continues as water polo pool also changes green | Daily Mail Online
Warmer water is more conducive to algae growth which could explain they green shade of the water
the water in pool turned a shade of green
Read more: http://www.dailymail.co.uk/news/article-3733694/Now-one-s-going-green-Rio-farce-goes-water-polo-pool-changes-colour-look-like-dirty-pond-just-like-dive-pool-door.html#ixzz4GyKd0AWn
Follow us: @MailOnline on Twitter | DailyMail on Facebook