The components of a mobile phone can be divided into four major categories.
手机里的元件可以分为四大类。
These parts can be grouped into four major categories: body, engine, chassis and electrical equipment.
这些零部件主要分为四类：车身、发动机、底盘和电气设备。
There are four major lexical categories and six minor lexical categories in English.
英语中有四种主要词类和六种次要词类。
There are four major lexical categories and six minor lexical categories in English.
英语中有四种主要词类和六种次要词类。
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