| 释义 |
〔doldrums〕A region of the ocean near the equator, characterized by calms, light winds, or squalls.赤道无风带：靠近赤道的海域，特征是或风平浪静，或起微风或起飓风〔hornwort〕Any of several submerged plants of the genusCeratophyllum, forming branched masses in quiet water and having finely dissected, whorled leaves and minute unisexual flowers. 角苔：一种金鱼藻属 的水下植物，在风平浪静时会形成纵横交错的树枝网，生有轮生的多裂叶，开极小的单性花 |