insensible
[ɪn'sensəbl]
adj.
无知觉的;
不知道的;
无感觉的;
（尤指）无疼痛感觉的;
n.
无知觉，无感觉，不知道;
adv.
无知觉地;
例句:
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Passing by insensible gradations into the next sense.
来自Oxford English Dictionary
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They were not insensible of the risks.
他们对这些危险并非没有意识。
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She shouldn't restrain her anger at this insensible attitude of theirs.
对他们这种无动于衷的态度,她抑制不住心头的怒火.
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We are not insensible of your kindness.
我们并非不知你的好意.
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It opens "on a winter's night, clear and cold, glacially insensible to human suffering," to quote the composer.
来自BBC