优先的英文是precedence。n.优先;居先。precedence,英语单词,主要用作为名词,意为“优先;居先”。precedence的造句 1、All existing supplies of helium ought to be conserved and released only by permit,with medica
2. (广播、电视上融合多种话题的)杂志型节目,板块节目 On radio or television, a magazine or a magazine programme is a programme consisting of several items about different topics, people, and event