I accidentally broke the Thermos.

我不小心把热水瓶摔碎了。

Grandma handed me a Thermos.

奶奶递给了我一个热水瓶。

I bought a Thermos as a gift for my aunt.

我买了一个保温杯给阿姨作为礼物。

A thermos is a container which is used to keep hot drinks hot or cold drinks cold.

保温瓶是一个容器 用来保持热饮热或冷饮冷

It's handy to have the thermos here.

暖瓶放在这儿好拿。

So the thermos is not an open system.

因此热水瓶不是个开系。

There's little water in the thermos.

暖瓶里几乎没有水了。

How about a thermos to keep the tea warm?

热水瓶怎么样？可以给茶保温。

The thermos is made of glass and mercury.

热水瓶是由玻璃和水银制成。