For standard colleague avoidance, I suggest fake chatting about fake business: "Yes, I'm glad you called, because we really need to hammer out the details."

对于典型的同事回避，我建议假装聊一些假生意：“是的，很高兴你打电话来，因为我们真的需要敲定细节。”

youdao

In early March, executives from more than 100 entertainment and electronics companies gathered in Los Angeles to hammer out details for the new audio compression standard.

ECONOMIST: Roll-your-own CDs roll on

We're confident these off kilter batteries have been keeping the IEEE quite busy in recent months, but they've apparently made time to agree upon the next major Ethernet standard, and have raised the bar way above the rumored "40Gbps" level by dropping the hammer on 100G.

ENGADGET: IEEE votes 100G as the next Ethernet speed, scheduled for 2010