关怀备至
guān huái bèi zhì
the utmost care (idiom); to look after sb in every possible way
concern (关) + cherish (怀) + fully (备) + utmost (至) = care in every possible way
备 carries the sense of complete readiness, and 至 means arriving at the furthest point — together they push the caring implied by 关怀 to its absolute limit. The idiom describes attention so thorough that nothing has been left unaddressed.
奶奶对孙子关怀备至，每天都问他吃了什么。
nǎi nai duì sūn zi guān huái bèi zhì, měi tiān dōu wèn tā chī le shén me。
Grandma looks after her grandson in every possible way, asking him every day what he has eaten.
这位老师对学生关怀备至，让大家都感到很温暖。
zhè wèi lǎo shī duì xué sheng guān huái bèi zhì, ràng dà jiā dōu gǎn dào hěn wēn nuǎn。
This teacher looks after her students with the utmost care, making everyone feel very warmly regarded.