Perhaps he unnerves them with loud talk.

也许他用大声的谈话使失去气力他们。

He quickly becomes the talk of the village as he unnerves the locals.

他很快就成了村里议论的焦点，然而时间长了，别人也就不那么太当回事儿了。

With such an interest a fluctuation in the market unnerves the operator, and his judgment becomes worthless.

正因为收益大，所以市场的任何波动都会让操作者紧张，他的判断就不再有价值了。