sympathy"be at a loss what to do"的意思为：不知如何是好，不知所措。sympathy词义：同情；慰问；赞同；复数：sympathies。
sympathetic adj. 同情的；交感神经的；共鸣的；例句：I did not feel at all sympathetic towards Kate. 我对凯特一点也不同情。She was very sympathetic to the problems of adult students. 她对成年学生的问题很同情。
