Terribly cold weather and too little oxygen were two main difficulties.

极端寒冷的天气和氧气过少是两个主要的困难。

youdao

It's still a little too cold for them to go out into the open, but as soon as the weather warms up, I have no doubt that the little one will be out and about exploring and playing every day.

天气还是有点冷，它们不能到户外去，但一旦天气暖和起来，我毫不怀疑小家伙每天都会出去探索和玩耍。

youdao

One of the biggest mistakes you can make while exercising in cold weather is to dress too warmly.

在寒冷的天气下锻炼时，你可能会犯的最大的错误之一就是穿得太暖和。

youdao

Do this when the weather is not too hot and not too cold.

VOA: special.2009.04.28

I mean, the weather is always nice. I mean, it never gets too cold, never gets too hot.

天气一直很好。不会太冷，也不会太热。

旧金山最棒 - SpeakingMax英语口语达人

It knew the weather was too cold to travel.

VOA: special.2010.05.01

The weather was perfect, not very hot like last year, but not too cold either.

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