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协议必须确保所有的升降机和其它无障碍设备处于正常工作状态。
The agreement must ensure that all lifts and other accessibility equipment are maintained in proper working condition.
youdao
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协议必须确保所有的升降机和其它无障碍设备处于正常工作状态。
The agreement must ensure that all lifts and other accessibility equipment are maintained in proper working condition.
youdao