重点讲解:
1. be correlated with 相互关联;
Sunspot activity is correlated with the total amount of energy we receive from the sun.
太阳黑子的活动性与我们从太阳那获得的总能量密切相关 。
2. account for (数量或比例上)占;
Computers ac count for 5% of the country's commercial electricity consumption.
计算机占去该国商业用电的5% 。
3. in general 总的来说;总体上来看;大体上;
I think we need to improve our educational system in general.
我认为有必要从整体上改进我们的教育体系 。
4. intervene in 干涉;干预;介入;
The United States has not intervened in currency markets since two thousand.
美国(政府)上一次干预货币市场还是在2000年的时候 。
adj. 商业的
n. 商业广告