Tractus
[医] 束, 道
🗣️ 情景例句
Is smoking allowed on the train?
火车上允许吸烟吗？
Everybody's business is nobody's business.
人人都管，大家不管。
Lined up against the wall, there were long thin wires attached to metal spheres.
靠墙排列着许多细长的电线，而电线又连着金属球。