pitch in

今日英语词汇:  flat fee, curbside delivery, Curbside Pick-Up, recast, neighbourly, pitch in, pathos, crotchety。儒琴英语词汇选自欧美报刊文章以及英语原文小说。坚持学习英语今日词汇，有助于阅读和理解当今欧美主流媒体的新闻时事报道和英语文学作品。