The present draft article is in some sense superfluous but, against the historical background, and the former acceptance of a principle of abrogation, it has a certain role of clarification. In any event, a number of general treatises have found it useful to affirm the principle.
55. 本条款草案在某种意义上说并非必要，但从历史背景角度来看，并考虑到以前接受过废除原则，本条款草案还是具有一定的澄清作用。