keep warm

基本解釋

Our frozen ancestors of the Ice Age needed plenty of fat in their diets to keep warm – and it seems we might still be carrying their genetic torch.
在遙遠而又寒冷的冰河時期，我們的祖先需要從食物中獲取大量的脂肪，以用來保持溫暖，不過生活在現(xiàn)代社會的人們似乎依舊繼承者祖先們的這一遺傳基因。
Frankfurt is the most expensive place to buy clothes, but residents won't be penalised heavily if they keep warm instead by leaving the heating on, which is half the New York cost.
服裝最昂貴的地方是法朗克福，不過如果當(dāng)?shù)鼐用裰皇潜Ｅ脑?，消費并不會太離譜，只需要紐約的一半。
One reason for this is that insects are cold-blooded, so they don't need to eat food to keep warm.
原因之一是因為昆蟲是冷血的，所以它們并不需要靠吃食物來保暖。

The weather is warm. They do not have to wear heavy clothes to keep warm.
You try hard to keep warm. The days are shorter and darker.
They will place extra covering around the chest, head and neck of hypothermia victims to keep them warm.

The warmly dressed children walk but the others have to run to keep warm.
UNESCO: MEDIA SERVICES