产品代言英语

endorse 十分确定，明星代言：celebrity endorsement 固定搭配

endorse something 解释：to say in an advertisement that you use and like a particular product so that other people will want to buy it例句：I wonder how many celebrities actually use the products they endorse. 多查查词典，以上出自牛津词典

代言：Oxford Dic Online: (http://www.oup.com/oald-bin/web_getald7index1a.pl)Endorse: to say in an advertisement that you use and like a particular product so that other people will want to buy it: 例句：1.I wonder how many celebrities actually use the products they endorse.2.These days, Jenner endorses products including health foods and sunglasses.

spokesperson spokesman多查字典

代言： Endorse:to say in an advertisement that you use and like a particular product so that other people will want to buy it: 例句： 1.I wonder how many celebrities actually use the products they endorse. 2.These days,Jenner endorses products including health foods and sunglasses.

形象代言人是celebrity，这是在西方英语国家真正的、实际的、流行的用法。