例句：

　　Rivalry between the two industries presents a big headache for government.

　　這兩種產業(yè)的對抗使政府深感棘手。

　　But, in the short term, it is a big headache.

　　但就短期來看，這極其棘手。

　　With population rapidly increasing, heavy traffic has become a big headache for many cities.

　　隨著人口的迅速增長，交通擁擠已成為許多城市難以解決的問題。

　　The cost is only a fraction of his salary.

　　那項費用不過是他薪水的一小部分。

　　The circle is divided into sections, and each section represents a fraction of the data.

　　這個圓被分成幾個部分,每個部分代表數據的一小部分。

　　The message arrives in your brain in a fraction of a second.

　　信息瞬間便可傳遞到大腦。