To show tender care and deep concern for someone, often like one would for a beloved family member; to be solicitous and attentive to another's needs and comforts.
老奶奶年纪大了，儿女们对她都知疼着热，照顾得无微不至
The elderly grandmother was well cared for by her children, who showed tender concern and attentiveness to her every need.
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