A smile, a wave and a friendly attitude can break down any barrier and create friendships where language cannot be understood.

笑容、挥手与友好的态度，可以跨越任何形式的障碍，即便在语音不通的情况下，也可以建立友谊。

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"This study provides proof that barrier islands exist in every climate and in every tide-wave combination," said Pilkey, a coastal geologist.

“这项研究证明障壁岛存在于每种气候环境和每种潮汐波组合，”海岸地理学家Pilkey说。

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The interaction of water waves for both surface - and internal-wave modes with a rigid vertical thin barrier in a two-layer fluid was examined.

研究在两层流体中表面波模态和内波模态的波浪与半潜式刚性垂直薄板相互作用的问题。

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Record-company executives argue that marketing will remain the barrier to entry for the expected wave of Internet-based challengers.

ECONOMIST: The record industry takes fright

The option erased an enormous financial barrier to entry for engineer entrepreneurs, led to a wave of innovations and lower costs for consumers, and created fortunes for young outfits such as Qualcomm and Broadcom.

FORBES: Ageless And Peerless In An Era Of Fabless

This innovation could unleash a new wave of Internet growth, particularly in Europe, where monopolistic telephone pricing has been a serious barrier.

FORBES: Fact and Comment