2020年3月1日
笔记：
1、have it (that…) 是一个惯用表达，表示“称…属实，说…是真的”(to claim that it is a fact that…) 。比如◇Rumor has it that some of the elderly fall to the ground deliberately in order to get the money. 有流言称，这些老年人是故意倒在地上，从而企图来获得赔偿金额。
2、budget ['bʌdʒɪt] 指“预算”(the money that is available to an organization or person, or a plan of how it will be spent)。比如◇be on budget在预算之内 ◇be over budget 高于预算 ◇be under budge低于预算
budget还可用作动词，指“把…编入预算”(to carefully plan and control how much money you spend and what you will buy with it)。比如◇The company has budgeted $10 million for advertising. 公司已经做了1,000万美元的广告预算
4、fraction可指“分数”，也可表示“少量，小份，一点儿”(a small part or amount of sth) 比如◇I opened my eyes just a fraction. 我微微睁开了眼睛。
5、aim sth at sb指“针对；对象是”(to say or do sth that is intended to influence or affect a particular person or group)。比如◇They could not aim the advertisements at young people. 他们不能把广告对准年轻人。
6、behavioural [bi'heivjərəl] 义为“行为的，行为研究的”(relating to behaviour)。比如《经济学人》一篇关于医疗科技的文章有这样一句话：Future AIs could, for instance, provide automated medical diagnosis from a description of your symptoms, spot behavioural traits that suggest you are depressed or identify if you are at special risk of cardiac disease. 比如，未来的人工智能可以根据你的症状描述自动提供诊断，还可以识别表明你处于抑郁的行为特征，或是确定你是否格外有可能罹患心脏疾病。
7、in theory 指“理论上，按理说”(used to say that a particular statement is supposed to be true but may in fact be wrong) 。近义表达还有：on paper 表示“按字面上，理论上”(judged from written information only, but not proved in practice)。比如◇On paper, we should be good friends.理论上说 我们注定是好闺蜜的。
in principle 表示“原则上，理论上”(if something is possible in principle, there is no good reason why it should not happen, but it has not actually happened yet)。