If the tough talk is not backed up by tough action.
如果强硬言论没有得到强硬行动的支持。
His claims are not backed by any scientific evidence.
他的说法没有得到任何科学证据支持。
The escape sequence is not a markup extension and is not backed by a class.
转义序列不是标记扩展，不受类的支持。
Surprising as it may sound, some software projects are not backed up in source control.
不足为奇的，因为它可能健全，一些软件项目不备份源的控制。
Try not to get backed into corners.
尽量不要陷入窘境。
This file was not successfully backed up.
这份文件没有成功地备份。
This file was not successfully backed up.
这份文件没有成功地备份。
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