Please translate:If you are having difficulty hearing a speaker because of noise in the hallway or outside, you can do something to make sure that the door or window is closed.是什么意思_Please translate:If you are having difficulty hearing a speaker because of noise in the hallway or outside, you can do something to make sure that the door or window is closed.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句