直通

to lead directly to

surname Zhi / Zhi (c. 2000 BC), fifth of the legendary Flame Emperors 炎帝[Yan2 di4] descended from Shennong 神農|神农[Shen2 nong2] Farmer God

straight / to straighten / fair and reasonable / frank / straightforward / (indicates continuing motion or action) / vertical / vertical downward stroke in Chinese characters

to go through / to know well / (suffix) expert / to connect / to communicate / open / to clear / classifier for letters, telegrams, phone calls etc

classifier for an activity, taken in its entirety (tirade of abuse, stint of music playing, bout of drinking etc)

through train

"through train" (refers to the idea of retaining previous legislature after transition to Chinese rule in Hong Kong or Macao)