: an act that brings aid or encouragement : guide an innovation which has been a boost to the complete business literary We could see practically nothing for miles but serried ranks (= many near rows) of fir trees. 数英里范围内，映入眼帘的只有一排排密密丛丛的冷杉树。 White hat tips is mostly summed up as building material https://news.rafeeg.ae