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Common Words / Phrases:
| 1. |
| [Audio clip: view full post to listen] | : | spare parts |
| 2. |
| [Audio clip: view full post to listen] | : | reserve; spare; standby |
| 3. |
| [Audio clip: view full post to listen] | : | fully; to the utmost |
| 4. |
| [Audio clip: view full post to listen] | : | essential; necessary |
| 5. |
| [Audio clip: view full post to listen] | : | guard against |
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