I don't dare even to put a foot wrong.

我连一点小错也不敢出。

40 meters up, and unattached, Tete can't put a foot wrong.

远在 40 米的高空，完全没有保护措施，特特每一步都要很谨慎。

If you're to make a success here, you can't afford to put a foot wrong.

如果你想在这里站住脚，可不能走错一步路。

She really very, very rarely put a foot wrong.

她真的非常非常很少出错。

And all the while the Queen has gone on through her late 80s and 90s, smiling serenely, saying the right thing, never putting a foot wrong.

一直以来，女王一直在 80 年代后期和 90 年代末，她平静地微笑，说正确的话，从不犯错。