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| |||
| decern; figure down; look; ravel | |||
| ascertain | |||
| ascertainment | |||
| decontaminate | |||
| 弄清: 33 phrases in 9 subjects |
| American usage, not spelling | 1 |
| Business | 2 |
| Dermatology | 1 |
| Drilling | 2 |
| Economy | 2 |
| General | 22 |
| Marketing | 1 |
| Mathematics | 1 |
| Project management | 1 |
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