波罗的海运价指数由于受多种因素的影响，波动剧烈，走势难以琢磨，为市场上的经营者带来了巨大的风险和机遇。
BFI fluctuates violently and gets out of trend for being influenced by many factors, which bring huge risk and opportunity for operators in market.
当飞机遇到波动气流或坏天气时也可能出现问题。
Other problems can come when the plane hits a rocky air stream or rough weather.
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