短语讲解：

1. It is not made according to officially set measurements, or standards.

according to 根据，按照; 据…所说
例句：According to the normal practice, the genes will be represented by letters.
根据一般的惯例，基因是用字母来表示的。

2. It is also used for furniture or man-made building products such as flooring and window covers, or blinds.

be used for 用来做…
例句：The term biotope should be used for the environment in which a community exists.
生活小区一词指的是群落生存的环境。

3. This is mostly because of its round shape.

because of 因为，由于
例句：John's jacket got out of shape because of the heavy rain.
约翰的夹克因为大雨而变形。
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