1、raise是提高的意思。
2、例句：
（1）When the economy is weak, its very hard for suppliers to raise their prices.经济萧条时期，供货商很难提价。
（2）Carl couldnt even raise the energy for a smile.卡尔连微笑的力气都拿不出来。
（3）Straining to lift heavy weights can raise your blood pressure.用力提重物会导致血压升高。
（4）They want to raise standards in schools.他们想提高学校的标准。
