He could not help realising the extreme difference.

他不禁意识到了极端的不同。

Our first tip here is to avoid extreme differences in contrast.

我们在这里的第一个技巧是避免对比度的极端差异。

But there are also extreme differences, often between millennials of color and white millennials.

但也存在极端差异，通常存在于有色人种千禧一代和白人千禧一代之间。

Without ocean currents circulating warm and cool air across the planet, you'd have a lot more extreme differences in temperature and climate.

如果没有洋流在地球上循环暖空气和冷空气，就会出现更加极端的温度和气候差异。

There've been extreme differences in the estimates of deaths by the directly or indirectly caused by the storm and Puerto Rico's governor says the new estimate could change as time passes.

两次直接和间接死亡总数的数据差距极大，而波多黎各州长称最新数据会随时间而变化。