pioneering advertising开拓: open up; reclaim; extension; ...性: nature; character; dispositi ...广告: advertisement; advert; ad; p ...开拓性的: ground-making开拓性工作: development work下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:开拓性广告,即可在微信中查询翻译