妈妈： 你的保暖内衣呢？

Mum: Where's your thermal underwear.

他忘了带保暖内衣，整晚都觉得冷。

He forgot to pack his thermals and felt cold all night.

我冬天总是穿保暖内衣来保持温暖。

I always wear thermals during winter to stay warm.

她为去山里的旅行买了一套新的保暖内衣。

She bought a new set of thermals for her trip to the mountains.

我妈妈总是提醒我气温下降时要穿保暖内衣。

My mom always reminds me to wear thermals when the temperature drops.

在寒冷的天气里露营，保暖内衣是必不可少的。

Thermals are essential for camping in cold weather.

组织者还储备了睡袋和保暖内衣。

Organizers are also stockpiling sleeping bags and long underwear.