natural barrier

基本解釋

And Vietnam has invested in mangrove restoration to rebuild a natural barrier to protect coastlines from flooding.
另外，越南正投資重建紅樹林，這道自然屏障能在澇災(zāi)中保護(hù)海岸線。
But conservation efforts in this unique eco-system – which serves as a natural barrier to future cyclones - are inadequate.
但是對這里唯一的生態(tài)系統(tǒng)——那些阻擋未來風(fēng)暴的天然屏障——的保護(hù)措施卻收效甚微。
With that 5, 000-metre natural barrier behind us, we were steering steeply down towards Sost, Pakistan's most northerly town.
背后是海拔5000米的自然屏障，我們沿著陡峭的山路下坡前往Sost，這是巴基斯坦最北端的市鎮(zhèn)。

Regulation is a natural barrier to market consolidation across borders, but a second force bears on securities markets in exactly the opposite way: technology.
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They built only on high ground, mostly left the river to its own devices, and relied on the wetlands as a natural barrier to buffer and deplete any incoming hurricanes.
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The owner, Veolia Environnement, one of the giants of the industry, has built an underground wall of similarly waterproof clay around the site which extends deep enough to reach the natural barrier below.
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