1. reduce vt.减少，缩减
The price of these shoes has been reduced since the New Year’s Day.
The new bridge reduces the traveling time from 50 minutes to 15 minutes.
reduce to减少到，使……变为（更小尺寸）
reduce by减少了，（以……的比例）减少
拓展：
reduction n.缩减，减少，降低
make a reduction打折扣
at a reduction of打了……的折扣
