There are fast trains, slow trains, trains that go under the ground, and trains that go through mountains.

这儿有快车，慢车；还有地下火车和穿山火车。

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Currently, a few accommodation fast trains don't have air-conditioning.

目前，少数有卧铺的高速列车并没有空调。

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All of the Accommodation Fast Trains don't have air conditioning.

所有的卧铺高速列车都没有空调。

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But such fast trains would take a long time to put in place in the United States.

VOA: special.2011.02.11

From fast trains to stem-cell research, Californians voted for good things while neglecting to pay for them.

ECONOMIST: Repairing California

Japan's leading airline, All Nippon Airways (ANA), has been using such e-wallets to compete with the country's formidably fast trains for more than five years.

BBC: Near field communication transforms travel in Japan

All very convenient, like the MTR's fast trains.

CNN: Hong Kong Packs the Train