green algae 绿藻
sea algae 海藻
algae bloom 藻类爆发
microscopic algae 微型藻类
A: Have you noticed the change in the pond water?
A：你注意到池塘水的变化了吗？
B: Yes, there is a lot of green algae growing on the surface.
B：是的，水面上长了很多绿色的藻类。
1) 藻类
2) 水生植物
3) 浮游生物
1. 藻类
noun
1. Aquatic organisms such as seaweed or scum that grow in water.