The boom, made of logs chained together, was placed so that a ship striking it would be slowed down to the point that it could not break the chain.

这条栏木是由那些圆木连接起来的。船只要是撞上它就会减速，以使船不会撞到锁链。

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For the brave people on board, close to this massive object, time would be slowed down.

对于船上勇敢的人来说，靠近这个巨大的物体，时间会慢下来。

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Government supported the railroad industry; the progress railroads represented was not to be slowed down by requiring them often to pay damages to those unlucky enough to be hurt working for them.

政府支持铁路行业；铁路所代表的进步不会因为要求他们经常向那些为他们工作而不幸受伤的人支付赔偿金而减慢。

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At the start, it was moving at 13, 200 miles per hour, and needed to be slowed down, to keep it from ending up a smashed pile of rubble.

CNN: Curiosity opening Martian frontier?

Maestro Alan became convinced our economy was too prosperous and had to be slowed down.

FORBES: Fact and Comment

Speeding drivers in Swindon are to be slowed down by using traffic lights.

BBC: Swindon traffic lights to slow speeding drivers