Often, you will only need this in the coldest weather, when the fleece adds extra insulation between your base layer and your outer layer.

通常你只会在最冷的天气才需要这个，羊毛会在你的底层和外套之间增加一个额外的隔绝层。

youdao

We could have a base on the moon within 30 years, reach Mars in 50 years, and explore the moons of the outer planets in 200 years.

我们可以在三十年内建立在月基地，五十年后到达火星，200年后探索外行星的卫星。

youdao

Objective reason or outer authority is considered as the rationality base of educational pre-modernity.

教育前现代性以客观理性或外在世俗权威为合理性基础。

youdao

Nato said that the attackers succeeded in breaching the outer perimeter of the base but no coalition soldiers were killed in the incident.

BBC: Militants kill Afghan policemen at Kandahar checkpoint

The covers apparently get their eye-catching look from their "dual-shot color" shells, with several of the cases a mix of either two colors or a white base and gently tinted outer layer.

ENGADGET: Nokia Lumia 620 hands-on: $249 for Windows Phone 8 (video)

By working bilaterally and multilaterally on using outer space for civilian purposes, mitigating space congestion, and increasing our knowledge base via research and development, the United States and Brazil will deepen our strong and collaborative partnership.

WHITEHOUSE: Fact Sheet: The U.S.-Brazil Global Partnership Dialogue