在购买单件艺术品之前，我们需要做大量的搜索及研究。

Before a purchase is made in a piece of art, a lot of research should be done.

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总所周知，在高潜水时需要做大量的热身工作，但进入高潜水之后，我们就不会再介意深入一点了。

It takes a lot of warm up and deep breaths before you jump off a high-dive and we're less hesitant about walking down a flight of steps.

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但如何解决纳米粒子在高分子基体中难以均匀分散的问题，仍需要做大量的研究工作。

A lot of research need do because it is difficult to resolve the problem of uneven dispensability of nano-particles in polymer.

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You really want to get the power of dividing things up, but if you end up doing a ton of work at the combination stage, you may not have gained anything.

你真的想得到分解问题的能力,但是如果在合成的某个阶段,你需要做大量的工作，你可能得不到任何东西。

麻省理工公开课 - 计算机科学及编程导论课程节选