Evidence suggests that a key step is to develop a policy on bullying, saying clearly what is meant by bullying, and giving explicit guidelines.

有证据表明，关键的一步是制定关于欺凌的政策，明确欺凌的含义，并给出明确的指导方针。

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This is a key step.

这是一个关键的步骤。

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This was a key step to ensuring uniform adoption of the wi tools within IBM.

这对确保在IBM内全面采用WI工具是非常关键的一步。

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Scientists in Dundee believe they have uncovered a key step in how cells turn into tissues and organs.

BBC: Embryonic cells

The agreement - a key step towards banking union - will be put before European leaders later on Thursday.

BBC: Eurozone agrees ECB banking supervision rules

Further, HP was the first in its sector to publish details about its supply chain, a key step towards increased transparency.

FORBES: The Unreasonable Institute and HP: High-Impact Social Entrepreneurs