HSK 7-9
铺路
pūlù动
to pave (with paving stones); to lay a road; (fig.) to lay the groundwork (for sth); to give a present to sb to ensure success
这次试验为后续研究铺路。
Zhècì shìyàn wèi hòuxù yánjiū pūlù.
This experiment laid the groundwork for subsequent research.
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Appears across levels (7-9) in the HSK 3.0 word list.