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。