They are studying the changes in their Numbers.
他们在研究它们数字上的变化。
The members of the Birdwatching Club are studying the different kinds of birds and the changes in their numbers.
观鸟俱乐部的成员们正在研究不同种类的鸟以及它们数量上的变化。
This year, members of our Birdwatching Club are studying the different kinds of birds in Zhalong and the changes in their Numbers.
今年我们观鸟俱乐部的正在研究扎龙地区的各种鸟类及它们的数量变化。
Because they can reproduce several times each year and produce large numbers of offspring, many insect species can generally adapt quickly to changes in their environment.
由于昆虫每年可以繁殖几次并产生大量后代，许多种类的昆虫通常能迅速适应环境的变化。
Because of these changes, Numbers that would logically be equal may have changes in their least-significant digits that cause them to have different values.
由于这些变化，逻辑上相等的数字其最低有效位数可能会发生变化，从而导致它们具有不同的值。
Because of these changes, Numbers that would logically be equal may have changes in their least-significant digits that cause them to have different values.
由于这些变化，逻辑上相等的数字其最低有效位数可能会发生变化，从而导致它们具有不同的值。
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