You know that troubled economic times have put global currency on a roller coaster ride.

你知道，经济不景气使全球货币像坐过山车一样起伏不定。

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Taking a ride on the hormonal roller-coaster means lots of changes—and a lot of common worries—for both guys and girls.

坐荷尔蒙过山车意味着许多变化——我们都有共同的担忧——无论是对于男孩还是女孩。

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You can shop, eat, ice skate, see a movie and ride on a roller coaster here.

在这里你可以购物、就餐、滑冰、看电影，还可以玩过山车。

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Each week,the show took them - and viewers - on an emotional and mind-bending roller coaster ride, through a dizzying loop of supernatural forces, armed conspirators and,of course,romance."

VOA: standard.2010.05.25

Stem cell research in the U.S. has been on a roller coaster ride the past few weeks.

FORBES: Stem Cell Heroes And Villains

Since September 11, the day of the disaster, the rental car companies have gone on a roller coaster ride.

CNN: Car rentals, like airlines, hard hit after attacks

If investors allow their emotions to take them on a roller coaster ride, they can quickly become their own worst enemy.

FORBES: Understand The Cycle Of Market Emotions To Make Better Investing Decisions