desensitize

vt. 使麻木不仁, 使不敏感
【医】 脱敏[感], 失敏[感]

动词过去式:desensitized 过去分词:desensitized 现在分词:desensitizing 第三人称单数:desensitizes 名词:desensitization 

de.sen.si.tize

v.tr.（及物动词）
de.sen.si.tized,de.sen.si.tiz.ing,de.sen.si.tiz.es
To render insensitive or less sensitive.
使降低敏感性：使不敏感或降低敏感性
Immunology To make (an individual) nonreactive or insensitive to an antigen.
【免疫学】 使减感：使（某个体）对某抗原不敏感或不发生反应
To make emotionally insensitive or unresponsive, as by long exposure or repeated shocks:
使麻木：由于长期或反复地受到震惊使情感上不敏感或无反应：
例句：
.The successive assassinations and attempts, not just on Presidential figures but on Martin Luther King Jr. and others, have desensitized us.(Anthony Lewis)
.不仅仅是对总统级的人物，而且有对马丁·路德和其他人的连续的暗杀或企图，使我们变得冷漠麻木了.(安东尼·刘易斯)

To make (a photographic film or substance) less sensitive to light.
减低感光性：降低（照相底片）对光的敏感性

【引伸】
desen.sitiza.tion

desen.sitiz.er
n.（名词）