今天我们要学的词是border crossing. Border crossing 边境通道。Finland has started tightening controls at two Northern border crossings with Russia to stop illegal crossings. 芬兰加紧对北部两个边境通道的控制，防止有人从俄罗斯一边非法越境。Pakistan and Iran agreed to open two more border crossings to increase bilateral trade. 巴基斯坦和伊朗同意增设两个边境通道，以增加双边贸易。好的，我们今天学习的词是 border crossing, border crossing, border crossing...