a801cd25-7f00-453f-9d89-a4b0476c9b22

वक्ता:

• Speaker 1 0:00
• Speaker 2 0:40

1. 0:00

   अध्यायः 1: Recording 61. 301s · Speaker 1

   Recording 61. You will hear two students discussing their assignments. First you have some time to look at questions 21 to 26. Hi Mike, how's it going? Actually, I was up last night with an assignment, so yeah, I'm tired, but I guess we'd b…

2. 5:01

   अध्यायः 2: Well, we probably won't see an increase in biofuel use. 207s · Speaker 2

   Well, we probably won't see an increase in biofuel use. I mean, they won't replace fossil fuels until we can find ways to produce them cheaply and quickly and with less cost to the environment. Making sure they require minimal energy to pro…