voluntarily: 志愿地，自发地，自动地
Other states are backing off voluntarily.
其他州则自愿回到原来的样子。
And yet he might as well have been the target user for the site, whose members voluntarily answer, on average, 233 questions about themselves. "
网站的用户平均需要自愿回答涉及本人的233个问题。

run into:遇见
But at that size the ships run into problems.
但这样大的船将会遇到许多问题。
I did notice some lag swiping between comic books panels, though I didn't run into that problem when reading other media.
阅读漫画书时，我确实注意到翻屏有点迟滞，但在读其他内容时就没有碰到这种问题。

bend over v.俯身，屈从
You want me to bend over so youcan smack me with that paddle?
你想让我弯下好让你用那板子打我?