The address is 2025 M Street, Northwest, Washington, DC, 20036.地址为华盛顿特区，西北区，M大街2025号，邮政编码20036。Take the northwest road; it is the shortest way.走向西北的那条路, 那是最近的路.He was born in the northwest.他出生于西北部....
病原体几乎立刻就被自动系统检测到了。The pathogen was almost instantly detected by automated systems.相对的一端锁在病原体上.The opposite end latches onto the pathogen.已经发现至少有一种禽病的病原体.At least one avian disease pathogen has been found....