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(means of) transportation; transport; transportation facilities; transportation system; transit system
東京は交通機関がとても発達しているね。
Tokyo has well-developed transportation.
大雪で交通機関が全て止まってしまった。
All public transportation stopped due to heavy snow.
この街は交通機関が発達していて便利だ。
This city has well-developed public transportation and is convenient.