The repeat patterns in the smoke made lots of people smell a rat and it turned out that Hajj had even copied some of the buildings.

烟雾中重复的样式让很多人感到可疑，结果证实，哈吉甚至复制了其中的一些建筑物。

If I don't send a picture, he will smell a rat.

如果我不寄张照片，他会起疑心。

I smell a rat.

我觉得事情不妙。

I smell a rat. Look at this column.

我觉得很蹊跷。你看这一列。

Nevertheless, some are starting to smell a rat.

然而，一些人已经开始嗅出味道。