This city is now richer in species than any other in the world. 如今 它成为了世界上物种最丰富的城市

351. There is one city where that idea is being applied on a major scale.
     有一座城市 正在大规模实践这个构想
352. Singapore.
     新加坡
353. Two million trees have been planted here in the last 45 years.
     这座城市在四十五年里共种了两百万棵树
354. This city is now richer in species than any other in the world.
     如今 它成为了世界上物种最丰富的城市
355. And this practise extends to all parts of the city.
     构建自然城市的实践延伸至城市的每个角落
356. The waterways have been cleaned up,
     城市中的航道被清理干净
357. and smooth-coated otters are coming back.
     江獭们得以重新回归

来自《行星地球 第二季 第六集 Planet Earth S02E06 城市》第 354 行