“无微不至”，汉语成语，意思是无论如何细微，都能周全照应。形容关怀、照顾得非常周到、细致。可以翻译为“with great care/meticulousness，in every possible way”，常用搭配“无微不至地照料/关怀（take infinite care of somebody）”。

例句：

她对孩子们的关怀无微不至。

She takes the greatest possible care of the children.

她丈夫生病期间，她无微不至地照顾他。

She tended her husband carefully during his illness.