HSK 7-9
海藻
hǎizǎo名
seaweed; marine alga; kelp
退潮后岩石上露出海藻。
Tuì cháo hòu yán shí shàng lù chū hǎi zǎo.
Seaweed appeared on the rocks after the tide receded.
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Appears across levels (7-9) in the HSK 3.0 word list.