railroad crossing是什么意思

railroad crossing是什么意思 crossing用法是什么 the new bridge over the railroad tracks eliminated the danger in crossing.请问这句话的意思, at the first crossing是什么词性 at the first crossing的中文是什么 关于加拿大的历史：Underground railroad这个词确切指的是什么? crossing the bridge ,you will find the post office这里的crossing是什么成分? auto crossing是什么意思以太网交换机的auto crossing正确的中文翻译应该是什么? Turn right at the first crossing.同意的句子是什么 英语翻译Life has been pretty good to she and me.We live in a nice little town in the middle of almost nowhere.We own a rental business adjacent to our house,just down the street from the local railroad crossing.If there was one thing about my lif that railroad can go ----- the mountain.(介词) They wanted to build the railroad.对build the railroad提问 谁能帮我分析下这个句子是什么从句?The primary reason was skepticism that a railroad built through so challenging and thinly settled a stretch of desert,mountain,and semiarid plain could pay a profit.希望分析的详细一点, at the first crossing paraphrase 'crossing the bar zebra crossing怎么读 finger is crossing是什么意思? 斑马线 ZEBRA CROSSING怎么样