这几个词怎么翻译啊？高手帮忙啦！！

appearance decency 仪表礼仪
reception decency接待礼仪
largess decency馈赠礼仪
谈判礼仪最好是 negotiation decency.
decency比较常用...

分别为etiquette of bearing,

reception etiquette,

gift giving etiquette/present etiquette,

是的，应该翻成negotiation etiquette

仪表礼仪 appearance protocol
接待礼仪 reception protocol
馈赠礼仪 presentness protocol