transportation
[名词]
a system or method for carrying people or goods from one place to another by cars, trains, etc.

交通运输, 运输系统
Ex: The government invested in transportation.
problem
[名词]
something that causes difficulties and is hard to overcome

问题, 难题
Ex: There was problem with the delivery , and the package did n't arrive on time .
accident
[名词]
an unexpected and unpleasant event that happens by chance, usually causing damage or injury

事故, 意外
Ex: Despite taking precautionsaccidents can still happen in the workplace .
mechanical
[形容词]
(of an object) powered by machinery or an engine

机械的, 机动的
Ex: mechanical lawnmower relies on a gasoline engine to power its blades and propel itself across the lawn .
to miss
[动词]
to fail to catch a bus, airplane, etc.

错过, 未赶上
Ex: She was so engrossed in her book that missed her metro stop .
train
[名词]
a series of connected carriages that travel on a railroad, often pulled by a locomotive

火车, 列车
Ex: train traveled through beautiful countryside .
flight
[名词]
a scheduled journey by an aircraft

航班, 飞行
Ex: flight across the Atlantic took about seven hours .
seasick
[形容词]
feeling sick or nauseous due to the motion of the ship or boat one is traveling with

晕船的, 呕船的
Ex: Despite the beautiful views , he felt seasick to enjoy the boat ride .
carsick
[形容词]
feeling sick because of the motions experienced while traveling in a car

晕车的, 车上晕动的
Ex: The winding roads made everyone in the backseat carsick.

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