red alga的用法和樣例：
例句
- The phycoerythrin extracted from red seaweeds can be used as a new kind of photosensitizer for photodynamic therapy.
從紅藻中提取的藻紅蛋白可以作為光動力學治療法的一種新的光敏劑。 - Corals get the credit for most of the reef structure, but much of the construction is done by fast-growing, encrusting red algae.
珊瑚因大部分礁石結構而得名，但很大一部分建築工作是由快速生長的成薄殼狀紅藻完成的。
