alga glomerules

例句：

1. 1. Algae are a type of green plant that can be found in oceans and lakes.
   海藻是一种可以在海洋和湖泊中找到的绿色植物。
2. 2. The alga was used as food by ancient peoples.
   这种海藻被古代人用作食物。
3. 3. The alga is a good source of protein for the human body.
   这种海藻是人体蛋白质的良好来源。