VOA慢速英語:Control of Weeds by Natural Enemies

00:00

00:00

MP3下載 文本下載

https://online2.tingclass.net/lesson/shi0529/0008/8385/20140128a.mp3

https://image.tingclass.net/statics/js/2012

　　Too much use of an important chemical can fuel the spread of new weeds. Some weeds are strong enough to resist weed killing products, also known as herbicides. But researchers are finding natural ways to deal with unwanted plants.

　　抱歉，本篇聽力文本無法及時更新，請自行聽寫。