on the tip of one's tongue 就在嘴边
【讲解】
tip的意思是“顶端”,从字面看,该习语的意思是“就在舌头尖儿上”,实际是“差一点就想起,就在嘴边。”
【对话】
A:Interesting lectures, aren't they?
A:演讲很有意思,是吧?
B:Yes, very. I thought the last speaker was especially good.
B:是的,非常有意思。我觉得最后一个演讲者尤为出色。
A:Do you know his name?
A:你知道他的名字吗?
B:Let me see. It's an unusual name. It's on the tip of my tongue but I just can't get it out.
B:让我想想,是个挺特别的名字,就在嘴边,可说不出来。