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来源:雅诚德英语网
Sprinkler systems must be installed if a company employs more than 25 people.
如果公司雇员超过25人,就要必须安装自动喷水灭火系统。
Sprinkler systems must be installed if a company employs more than 25 people.
如果公司雇员超过25人,就要必须安装自动喷水灭火系统。