傳輸層

transport layer

to pass on / to spread / to transmit / to infect / to transfer / to circulate / to conduct (electricity)

biography / historical narrative / commentaries / relay station

to transmit / transmission

to lose / to transport / to donate / to enter (a password)

to pile on top of one another / layer; stratum / floor (of a building); story / (math.) sheaf / classifier for layers