how to open the door 请问这里to是什么词?有人说是介词,介词后面跟名词和代词啊,可是open是动词?

tring to open the door how to open the door 请问 to可以去掉吗 为什么 press E to open the door to hold the door open的意思 We need ( )to open the locked door no one comes to open the door how to open the tin Open the door,please. open the door please,-------- ---------? Leave the door open. how to open the door 请问这里to是什么词?有人说是介词,介词后面跟名词和代词啊,可是open是动词? 谁能帮我写一篇题为How to open the door of happiness 的演讲稿,不需很难,但要有内容 谁能帮我写一篇题为How to open the door of happiness 演讲稿,不需很难,但要有内容 could you please open the door为什么用open 而不用to open ,opening?谢谢! the door are forced to open 这样可以么 翻译I found the door to be open he use a knife to open the door 同义句 when someone keeps the door open to us的意思