thải ra

It's such a ______________________ of clean water when you forget to turn the tap off.

The water has become undrinkable because it has been _____________ with rubbish.

Có thể tái chế

Recyclable products should not be ended up in open _____________ sites.

tổng lượng phát thải khí nhà kính

The city's ____________ needs upgrading to meet the demands from its citizens.

tái sử dụng

bền vững, thân thiện với môi trường

Many fresh graduates are struggling to ___________ a nine-to-five job.

thùng, hộp, gói

Traffic in the _________________ is a nightmare for commuters.