Whale song mystery solved by scientists
The humpback's song sounded so strange and haunting to sailors, they
used to think it belonged to ghosts or mythical sea creatures. Now, a study
has revealed ...
| English Article | Word Count | Duration | Accuracy | Speed | Backspace | Error | Slogan |
|---|---|---|---|---|---|---|---|
| 《Whale song mystery solved by scientists》 | 929字 | 5.8分钟 | 100% | 155 CPM | 17 次 | 0 | 及格，继续努力！ |
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