be upon thorns

• 坐卧不宁；如坐针毡；焦虑不安

be upon thorns的用法和样例：

例句

1. Not knowing when he would be crowned, the man was in daily suspense, unable to sit down or sleep at ease.
   那劣绅不知何日要戴高帽子，每日在家放心不下，坐卧不宁。
2. He was then sitting on thorns and waiting for you.
   他当时如坐针毡，焦急地等待着你。
3. It had been intolerable to be with him since then.
   从此跟他在一起就如坐针毡。
4. It is unbearable to be always on thorns.
   老是处于焦虑不安的情况中是受不了的。
5. The gap left by the disquieting dimension of history has, naturally, to be filled.
   在历史领域中造成的焦虑不安自然地被填补了。