O-12:on the spur of the moment 当场
A:I felt it was very kind of him to take so intimate an interest in these matters.
A:我很感激他对这些事的密切关注。
B:Yeah,he is a very kind person.
B:是呀,他是个好人。
A:Right,but on the spur of the moment I could find no better expression for this than a grunt.
A:就是,可我当时除了哼了一声之外,再也找不到更好的话来表达我的意思了。
B:Luckily,he is not the man who pays attention to the superficial thing and I think he can feel your thankfulness
B:幸亏他不是个在意事情表面的人,我想他能感受到你的感激之情。