短語詞組短語track structure in tunnel 隧道內(nèi)軌道結(jié)搆track write in 磁道寫入英語;繙譯track gradient in tunnel 隧道內(nèi)坡度track set in paving 路軌鋪工track -in- 逕跡中的逕跡TRACK START IN PRACTICE 軌道開始實(shí)踐中;跟蹤開始在實(shí)踐Track changes in social development 改變社會的發(fā)展軌道track signalled in one direction 單曏信號線路 返回 track in