in depth 彻底地
in regard to 关于
in the neighborhood of 大约、邻近
in retrospect 回顾,一想起
in behalf of 代表……利益
in the least 一点,丝毫
in alarm 惊慌、担心
in the opinion of 据……见解
in the long run 从长远说来
in one‘s opinion 在……看来
in word 口头上