| 单词 | undertow |
| 释义 | undertow UK ['ʌn.də.təʊ] US [-dɚ.toʊ] noun countable usually singular ■a strong current flowing under water in a different direction to the way the water on the surface is moving, especially the strong current that flows under water away from the land at the same time as a wave hits the beach 水下逆流；（尤指）退浪，回卷 |
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