be unfirm
表示状态，常描述物体或表面不稳固。
The ground is unfirm.
地面不结实。
不坚固的；不稳定的；虚弱的
不牢固的；不坚定的；虚弱的；不稳定的。；不结实的；松散的；不稳固的；不牢靠的
不牢固的；不坚定的；虚弱的；不稳定的。
Not firm; not strong or stable; feeble; infirm.
The ground was unfirm under my feet, so I walked slowly.
我脚下的地面不稳固，所以我走得很慢。
用法提示：unfirm 作表语，描述主语 ground 的状态，意为“不稳固的”。
He sat on an unfirm pile of boxes and nearly fell off.
他坐在一堆不稳固的箱子上，差点摔下来。
用法提示：unfirm 作定语修饰 pile of boxes，表示“不牢固的”。
The old chair felt unfirm, so I moved it against the wall.
那把旧椅子感觉不结实，所以我把它挪到墙边。
用法提示：unfirm 用在系动词 felt 后作表语，表示“不结实的、不稳定的”。
表示状态，常描述物体或表面不稳固。
The ground is unfirm.
地面不结实。
表示从不稳固变为不稳固的过程。
The soil became unfirm after the rain.
雨后土壤变得松散。
用于名词前作定语，表示该名词具有不稳固的特征。
an unfirm handshake
一个不牢靠的握手
grammar · medium
易错句子Please unfirm the screws before removing the panel.
正确表达Please loosen the screws before removing the panel.
Unfirm 是形容词，表示“不牢固的”，不能作动词使用。表示“使松动”应用 loosen。
grammar · medium
易错句子After the long illness, he looks very unfirm.
正确表达After the long illness, he looks very infirm.
Unfirm 通常用于形容物体不牢固，不用于人。形容人身体虚弱应用 infirm。
指身体虚弱；而unfirm指物体不牢固
指尚未形成或发育完全；unfirm指物体不牢固
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