thermos

thermos — noun

1. a bottle or flask whose double wall has a vacuum-sealed gap, keeping whatever li

1.名詞B1
釋義

a bottle or flask whose double wall has a vacuum-sealed gap, keeping whatever liquid is inside at the same temperature for a long time

例句

Andrés filled his thermos with hot coffee before the long train ride.

a thermos of + beverage for carrying

The children took a thermos of cold lemonade to the park on a summer afternoon.

同義詞
  • vacuum flask

    the technical, non-branded term; more common in British English

  • flask

    shorter and more general; can also refer to a hip flask for alcohol

  • insulated bottle

    describes the function clearly; often used for smaller, modern versions

文法句型

a thermos of [drink]

a thermos

the thermos

用法筆記

Originally a brand name, 'thermos' is now used in everyday speech for any vacuum flask regardless of the manufacturer.

常見錯誤

❌Can you pour me a thermos?
✅Can you pour me some tea from your thermos?
💡'thermos' refers to the container itself, not the drink inside.
❌I bought a new thermos bottle.
✅I bought a new thermos.
💡Adding 'bottle' is redundant because 'thermos' already describes the type of container.