always adv. 1.永遠,始終。 2.經常,老是,總是,一直。 3.不斷地。 She is always busy. 她總是忙。 You must always bear this in mind. 這一點你要經常記在心里。 Near, always near, he came. 他一步步走過來,愈來愈近了。 almost always 通常。 not always 未必,不一定。
In computability theory, a machine that always halts?also called a decider (Sipser, 1996) or a total Turing machine (Kozen, 1997)?is a Turing machine that halts for every input.