English: procede directly from performing one action to performing another
Source: Peter Martin's Kelabit Dictionary
bisung: shoved, pushed, jostled, elbowed; hit with a stick accidentally
isiu-isui: whistling away
isud 1: marrow ?
isud 2: sigh of relief
misung (ng-bisung): to shove, jostle, etc.
pebisung (pep-bisung): to shove each other about