wú​shí​wú​kè

constantly

无时无刻 (無時無刻) wú​shí​wú​kè
constantly idiom
at all times (used in a double negative construction '无时无刻不 wú​shí​wú​kè​bù' to mean 'at no time not...')

He is thinking of his motherland every single moment.

always idiom
at all times (used directly without a following negative)

For work reasons, he has his phone with him at all times.

Frequency

Movie subtitles
3.34 per million appears in 2% of films
Written text
2.09 per million

Sources

Definitions
CC-CEDICT