The first part of our contact, they add, should be limited to maths until we have a better idea of the type of ETI we are dealing with.
他们还说，在我们对外星人有更多了解之前，我们同外星人接触的第一步应该仅限于数学方面。
She pictured the hamster writing her maths exam, using its little claws to add and subtract.
她想象着仓鼠正在做她的数学试题，用它的小爪子在做加减法……
For example, one morning the children in Peter's class were set a maths test. They had to add up some very large Numbers, and they had twenty minutes to do it.
例如，有一天上午，彼得的班上进行数学测验，测验内容是非常大的数字的加法，需要在20分钟内完成。
For example, one morning the children in Peter's class were set a maths test. They had to add up some very large Numbers, and they had twenty minutes to do it.
例如，有一天上午，彼得的班上进行数学测验，测验内容是非常大的数字的加法，需要在20分钟内完成。
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