recombine|recombined|recombining

我们需要把这些零件重新组合起来以修复机器。

We need to ___recombine these parts to fix the machine.

实验后，这些化学物质又重新结合形成了新的化合物。

After the experiment, these chemicals ___recombined to form new compounds.

科学家们正在将基因片段重新组合以创造新的蛋白质。

Scientists are ___recombining gene fragments to create new proteins.