Likewise, you could tumble along the wall to avoid attacks of opportunity.

同样的，你可以沿着墙壁进行滚翻以避免遭受借机攻击。

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Still, she says, the testing the waters phase has allowed Thompson to avoid until now not only financial scrutiny, but also the rough and tumble of a full-fledged presidential campaign.

NPR: Thompson's 'Test' Campaign Reports $3.4 Million