investment
n.投资
Peter lost a lot of money by making a poor investment in that lousy company.
彼得对那家烂公司投资不利，损失了不少钱。
My father is going to buy some gold as an investment.
我爸爸准备购买一些黄金作为投资。
investor
n.投资者
The government will offer tax incentives to attract more foreign investors.
政府将提供租税优惠鼓励措施以吸引外国的投资者。
intelligence
n.聪明才智；情报
This job requires a high degree of intelligence.
这项工作需要高度的聪明才智。
The woman used to work for the Central Intelligence Agency (CIA).
这名妇女曾经替美国中央情报局工作过。
intelligent
a.聪明的
Lisa is intelligent and hardworking, which is why all her teachers like her.
莉莎既聪明又用功，难怪她的老师们都喜欢她。
AI (artificial intelligence)
n.人工智能
Those scientists are known for their research in AI.
那些科学家因其人工智能的研究而闻名。
calculate
vt.计算；估计（以 that 从句作宾语）
We need to calculate the overall costs before we make any decisions.
在做任何决定前，我们需要先计算以一下全部的花费。
The committee calculated that the project would cost at least one million dollars.
委员会推估该案子至少需花费一百万美元。
calculation
n.计算；计算结果
Beth's calculations were never accurate.
贝丝的计算从没正确过。
These calculations are based on the latest figures.
这些计算结果所根据的是最新的数据。
calculator
n.计算机
In the United States, many students can't do calculations without using a calculator.
在美国，许多学生没有计算机就不会计算。
regulate
vt.规范；调节，调整
With the number of cars increasing on a constant basis, the police are having a hard time regulating traffic in the city.
由于车辆数目不断在增加，警方在管理市区交通上遇到很大的麻烦。
Your health will be ruined if you do not regulate your life.
你生活再不规律点，健康都要给毁了。
regulation
n.规定，法规
All staff must obey the new regulations.
所有同仁都要遵守新规定。