by后面加人称代词的宾格。by为介词，介词后面的人称代词用宾格。
如:The apple was eaten by me.
by：
prep.靠近在…旁边常置于表示被动的动词后，表示使为者表示方式
adv.经过表示保留或保存时用短暂拜访 扩展资料
They won by a single goal after extra time.
他们在加时赛中仅踢进一球即获胜。
They've increased the price by 50%.
他们已经把价格提高了50%。
Now I can walk to work instead of going by car.
现在我可以步行去上班，而不必开车了。
I'm always broke by the end of the month.
我总是一到月底就没钱花了。
This situation can be influenced by a multiplicity of different factors.
当前的.形势可能受到各种不同因素的影响。
The rate of inflation increased by 2%.
通货膨胀率增长了2%。
