如坐针毡的英文：
[Literal Meaning]
like/sit/needle/mat
to be on a mat of needles

[解释]
形容心神不定，坐立不安。

[Explanation]
to be on tenterhooks

[例子]
知道自己的谎言被经理揭穿了，他如坐针毡，头上也冒出汗来。

[Example]
Knowing that his lie was revealed by the manager, he is on tenterhooks and sweat appeared on his head.

[英文等价词]
on pins and needles
a bed of nails
be on the anxious bench
be on thorns
lie on a bed of thorns
on pins and needles
on the anxious seat
sit on thorns

The two persons looked at each other as if they had ants in their pants.
他俩面面相觑，如坐针毡。

We were kept on tenterhooksfor hours while the judges were deciding the winners.
我们在等待裁判员裁决出优胜者,几个小时如坐针毡.