This paper describes the grammaticalization of Chinese classifiers and English unit nouns to prove that metaphors in general sense are the main cause of grammaticalization.

文章通过对汉语量词和英语单位名词的语法化现象的描述，证实了广义隐喻是语法化的驱使力量。

youdao

Collects a great number of English unit nouns and classifies them, by their characteristics, into three groups, namely, individual unit nouns, group unit nouns and unit nouns with extended meanings.

收集了大量的英语量名词，并按其特征划分为个体性量名词、群体性量名词和具有引伸含义的量名词三大类。

youdao

Each unit is constructed from a ribbed timber frame set upon Douglas fir stilts and then clad in English chestnut shingles.

每个单元均由肋木框架构筑而成，框架固定在花旗松高跷上，然后覆以英国栗木。

youdao

There are not enough pupils to justify a complete new school, but the parents do not want to make do with a unit in an English language medium school.

BBC: 'Satellite' Irish language school proposed in Maghera

One way of looking at these is as if they are a unit trust (in English) or a mutual fund (in American).

FORBES: Kweku Adoboli: How Did He Lose UBS $2 Billion?