是in low spirit 还是in high spirits?

是in low spirit 还是in high spirits? in high spirit还是in high spirits 英语用法为什么是in high spirits而不是in high spirit be in low spirit 心情愉快是in high spirits?为什么不是in good spirits in good spirits 与in high spirits的区别 in a good mood,in high spirits in high Christmas spirits什么意思 i am in very low spirit 是at a low price 还是in a low price spirit可数吗He felt in excellent spirits when he arrived home.C 是 in high 还是 in height