Trees can also help reduce the amount of noise in the surroundings, although the effect is not as large as people like to think.
树木还能减低周围环境的噪音，虽然不如我们想象中有效。
Low frequency noise, in particular, just goes through the trees as though they aren't there.
特别是低频噪音无视树木的存在，直接穿过他们释放出来。
Although trees can significantly improve the local climate, they do however take up a lot of space.
虽说树木能大大改善本地气候，但确实也很占空间。
There are root systems to consider and branches blocking windows and so on.
例如根系，树枝挡着窗等。
It may therefore be difficult to fit trees into the local landscape.
所以将树放置在本地景观中可能有困难。
There is not a great deal you can do if you have what we call a street canyon - a whole set of high-rises enclosed in a narrow street.
如果碰到街道峡谷，就是高楼成排街道狭窄，那也就无能为力了。
Trees need water to grow. They also need some sunlight to grow and you need room to put them.
树木生长需要水和太阳，你需要空间种植。
If you have the chance of knocking buildings down and replacing them, then suddenly you can start looking at different ways to design the streets and to introduce ...
如果有机会推倒建筑再建，那时就可以开始用不同的方式审视街道设计了，引入......