additional cost短语²⁶⁹⁵⁷ 基本例句 额外费用,新增成本 旅游 What would be the additional cost in the future, not only to farmers but also to foresters, land managers and gardeners, of beating back supercharged weeds? 今后，生命力过于旺盛的野草还会给不仅农民，还有种树人、土地管理者和园林工人们造成多少更大的麻烦呢？ blog.sina.com.cn