continuously uneasy, especially in fear of being detected
焦虑不安,如坐针毡(尤指担心被察觉)
(proverb)every apparently desirable situation has its share of trouble or difficulty
(谚)没有无刺的玫瑰;世上没有十全十美的事;有乐必有苦
a source of continual annoyance or trouble
经常使人苦恼(或生气)的事(或人)
the pastor has long been a thorn in the side of the regime.
这个牧师长期以来一直是令这个政权头疼的人物。