(since 2019-03-02)
2.1.-Introduction (4).The inventors of the blue LED win the Nobel Prize
Created: 2017-04-11
Total clicks on words: 6
| Clicks | New | Word | Last time |
| 2 | 2 | answer | 2019-07-15 |
| 1 | 1 | LEDs | 2019-07-15 |
| 1 | 1 | write | 2020-03-25 |
| 4 | 4 | ·Total· | 2020-03-25 |
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