| 释义 |
vacuum flask  noun chiefly BritishA container that keeps a substance hot or cold by means of a double wall enclosing a vacuum.Make sure you have enough warm clothing, that your mobile phone is fully charged, and take a vacuum flask with a hot drink....- Pouring the liquid oxygen from a vacuum flask he created 10 inches of frost inside the bomb and was able to defuse it successfully.
- You'll appreciate a warm drink from a vacuum flask, too.
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