backbreak + sth
超挖指挖掘过深或过宽。
The crew backbroke the foundation pit.
施工队超挖了基坑。
超挖
先理解核心含义，再看它在真实句子里的用法。
超挖
to break rock beyond the desired excavation line, typically in mining or construction
一般现在时
The machine backbreaks the soil automatically.
这台机器自动超挖土壤。
一般过去时
The worker backbreaked the trench yesterday.
工人昨天超挖了沟渠。
现在完成时
They have backbreaked this area too much.
他们已经把这个区域超挖得太多了。
规则动词，过去式和过去分词加-ed。
The engineer warned not to backbreak the soil layer beyond the specified depth.
工程师警告不要超挖土层超过指定深度。
用法提示：动词原形，表示超挖行为
The machine is backbreaking the tunnel wall at an excessive rate.
这台机器正在以过快的速度超挖隧道壁。
用法提示：现在分词，构成进行时，表示超挖动作正在进行
To install the foundation piles, the crew must backbreak the ground carefully.
为了安装地基桩，施工队必须小心超挖地面。
用法提示：动词原形，用于不定式短语，表示超挖目的
超挖指挖掘过深或过宽。
The crew backbroke the foundation pit.
施工队超挖了基坑。
现在分词形式表示正在进行的动作。
The excavator is backbreaking the trench.
挖掘机正在超挖沟渠。
grammar · medium
易错句子We need to backbreaking the soil.
正确表达We need to backbreak the soil.
动词-ing形式（backbreaking）不能用作不定式后的原形动词；情态动词或不定式后须用动词原形。
grammar · medium
易错句子The backbreak of the tunnel was difficult.
正确表达The backbreaking work of the tunnel was difficult.
backbreak 是动词，不可直接用作名词；应使用形容词 backbreaking 修饰名词 work 来表达相同含义。
backbreaking 是形容词，意为“非常辛苦的”，而 backbreak 是动词，意为“超挖”。前者描述工作的辛苦程度，后者指挖掘操作。
backbreaker 是名词，指“极为艰苦的工作或任务”，而 backbreak 是动词“超挖”。前者强调任务难度，后者是具体动作。
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