be indissoluble
常用于化学语境。
The compound is indissoluble in water.
该化合物在水中不能溶解。
牢不可破的；不可分割的；永久的
不可溶解的；不溶的；不可解除的；不可废止的；持久的；不可毁灭的；无法溶解、分解或破裂的。；(物质)无法溶解的；用于决策和合同
lasting and impossible to break or destroy; permanent
持久的；不可毁灭的；无法溶解、分解或破裂的。
Lasting; indestructible; not possible to dissolve, disintegrate or break up.
(物质)无法溶解的
(of a substance) incapable of being dissolved
用于决策和合同
used of decisions and contracts
The resin forms an indissoluble coating on the metal surface.
这种树脂在金属表面形成一层不能溶解的涂层。
用法提示：形容物质无法溶解，作定语修饰名词。
Their friendship was indissoluble, surviving every challenge.
他们的友谊牢不可破，经受住了每一次挑战。
用法提示：比喻抽象关系非常牢固，作表语。
Calcium carbonate is nearly indissoluble in pure water.
碳酸钙在纯水中几乎不能溶解。
用法提示：描述化学物质的不溶性，后接介词短语。
常用于化学语境。
The compound is indissoluble in water.
该化合物在水中不能溶解。
比喻义，指关系牢固。
They formed an indissoluble bond.
他们形成了牢固的纽带。
强调状态持续。
Their friendship remained indissoluble through the years.
他们的友谊多年来一直牢不可破。
insoluble 比 indissoluble 更常见，多用于化学物质。
undissolvable 与 indissoluble 同义，但使用频率较低。
grammar · medium
易错句子The indissoluble of the salt in water surprised the students.
正确表达The indissoluble nature of the salt in water surprised the students.
将形容词 'indissoluble' 误用作名词。应改为 'indissoluble nature' 或使用形容词修饰名词的结构。
grammar · medium
易错句子They faced an indissoluble problem in the project.
正确表达They faced an insoluble problem in the project.
混淆了 'indissoluble'（不溶解的）和 'insoluble'（难以解决的）。描述问题时应用 'insoluble'。
indissoluble侧重于物质不能溶解或关系牢固，而insoluble常指问题无法解决，也可指物质不溶。
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