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.
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.
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.
索赔是合同当事人正当的权利，承包商为了在索赔中维护自己的正当权益，需要做大量细致的工作。
Claim is the legal right for the involved persons in a contract. In this process, contractors must do a lot of careful work.
索赔是合同当事人正当的权利，承包商为了在索赔中维护自己的正当权益，需要做大量细致的工作。
Claim is the legal right for the involved persons in a contract. In this process, contractors must do a lot of careful work.
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