BY前面为什么不能加TO？

发布时间：2020-04-15 16:11:59

资讯分类：by to 降低及物将会

意思不一样reduce作及物动词时是降低的意思如：This operation makes sure it will reduce the risk of being cheated.这种方案确保了它将会降低被欺诈的风险。reduce to 降低到…如：The index has reduceed to 80% of it used to be .指数降为原来的百分之八十了。reduce by 降低了（多少）The number of classmates in this semester reduce by5 people .这学期学生人数减少了5人。