This situation must be changed.
这种情况必须改变。
The structure must be changed.
金融体系的结构必须改变。
To create another test connection, the service configuration number must be changed.
要创建其他测试连接，必须更改服务配置号码。
我们必须改变计划。
AC power cord must be changed only at the qualified service shop.
要更换AC电源线时，必须找有资格的维修店为您服务。
The traditional transmission style of image signal must be changed for satisfying these requirements.
为了满足这些要求，我们必须改变传统的图像信号传输方式。
Therefore teaching pattern of college English must be changed and translation practice must be enhanced.
大学英语教学必须调整教学模式加强翻译训练。
Therefore teaching pattern of college English must be changed and translation practice must be enhanced.
大学英语教学必须调整教学模式加强翻译训练。
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