如果没有这些，他们就会很容易驶过家乡的港口，迷失方向并永远无法回来。

Without this to go by, overshooting their home ports, getting lost and sailing off into eternity would have been all too easy.

youdao

如果没有这些大量冷却的海冰，被带到北极的暖空气可以比以前更深入渗透到内陆。

Without those masses of cooling sea ice, warm air brought to the Arctic can penetrate further inland than it ever did before.

youdao

试着想象一下，如果没有这些定义了我们的文化和价值观的杰出作品，我们的世界会是什么样子。

Try to imagine our world as well without the remarkable works that have defined our culture and values.

youdao

If there were no voltage on the plates, we would expect everything to be over here in some negative value falling.

如果板子上没有速度，这些可能都在这,都是负值下降的。

麻省理工公开课 - 固态化学导论课程节选

So realize if it doesn't quite sink in today, not a problems in terms of these low level details.

如果你们没有完全吸收我今天讲的内容，没关系,这些小细节都会在习题集中找得到。

哈佛公开课 - 计算机科学课程节选

I wish it didn't say "exit," but it does say "exit," because that kind of weakens my point, but over many auditorium doors a red light just hangs there.

如果这些灯上没有注明出口就好了“,因为这样会削弱我要证明的观点，礼堂的门上一般会挂着一盏红灯。

耶鲁公开课 - 文学理论导论课程节选