This is very important when installing applications.
这一点在安装应用程序时非常重要。
When installing Office, users simply drag and drop the Office folder to their hard drive.
在安装Office软件时，用户只需拖放Office软件至他们的硬盘即可。
When installing a boiler, the floor space which is available is very important.
安装锅炉时，在地面有可供利用的空间是很重要的。
When installing a boiler, the floor space which is available is very important.
安装锅炉时，在地面有可供利用的空间是很重要的。
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