海藻对海洋生态非常重要。
hǎizǎo duì hǎiyáng shēngtài fēicháng zhòngyào 。
Seaweed is very important for marine ecology.
我在海边捡到了很多海藻。
wǒzài hǎibiān jiǎndào le hěnduō hǎizǎo 。
I found a lot of seaweed by the beach.
一些海藻可以食用，有助于健康。
yīxiē hǎizǎo kěyǐ shíyòng ， yǒuzhù yú jiànkāng 。
Some seaweeds are edible and are good for health.