I am a novice and would like to learn SEO, but stupid, would like to ask experts to help me explain to the next forum topic in my "drawing spider" mean?

我是个新手，很想学习SEO，但是太笨，想请教下高手帮我解释下论坛内我的话题里“引蜘蛛”是什么意思？

youdao

The general described the effort as "hard work." Several civilian experts General McChrystal invited to help with an assessment of the situation have said they recommended he ask for more U.S.troops.

VOA: standard.2009.08.11

If there was one thing I did right on that tour to Iraq, it was to surround myself with experts and ask for their help regularly.

FORBES: Remembering the Road to Baghdad