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请英语高手帮我分析下这句子的语法

来源:学生作业帮 编辑:百度作业网作业帮 分类:英语作业 时间:2024/07/07 23:22:02
请英语高手帮我分析下这句子的语法
While you have option to include keepin areas for wires,vise,and packages,the route keepin are a MUST for the design.
特别是“are a MUST”部分,
“MUST”是单数还是复数,为何 a MUST 系动词却是 are
请英语高手帮我分析下这句子的语法
我认为are是对the route keepin而言,而the route keepin包括keepin areas for wires, vise, and packages,当然用复数are.must为必需品.