to release built-up stress or pressure
積み重ねられたストレスやプレッシャーを解放する (tsumikasane rareta sutoresu ya puresshā o kaihō suru)
"Exercise helps you let tension out after a tough day."
"エクササイズは大変な一日の後でストレスを解放するのを助けます。" (Ekusasaizu wa taihen na ichinichi no ato de sutoresu o kaihō suru no o tasukemasu.)
to combine or integrate into a single unit or system
to start working hard on something seriously
to introduce changes to improve a system or policy
to combine or mix different elements harmoniously
to leave or disappear
to become completely unresponsive or stuck