After you enter the park by the main gate.这句介词为什么用by?

let's meet at the gate of the park.you can e__go by bus or t DId you go to the park by the medicine have an effect by the pain,为什么介词用BY? Do you get to the park by the subway 改错 英语翻译After you enter the park,you’ll be walking back in time. You can go to the park by bus的同义句 by the lake是湖边的意思吗?为什么要用by这个介词? 英语翻译By the way,will you please pick me up at the gate of the They went to the park by bus.改为同义句 They went to the park by taxi.(改为同义句) I go to the park by bike同义句. to,bike,they,by,park,went,the ( . ) [连词成句]