Advantages and Disadvantages

🎧 Listen first (recording with tech noise - use this to get used to understanding despite the external challenges)


Try to repeat without checking the script

🎧 Listen again (clear audio, REGULAR)


🎧 Listen again (clear audio, CHUNKED)


Remember to always practice speaking your examples out - share in voice messages in your Class WeChat group

Now, check the script









Give us your ideas for the use👇👇👇👇👇

These are all the advantages of this new approach. I do have to mention its disadvantages. It has some risks in the key step, maybe we need to overcome it by photochemistry.

The advantage of this new route is that it is relatively short, but its disadvantage is that the starting materials are relatively expensive.

For this original route, it has many advantages for us to finish the target soon, but the disadvantage is that the price of the starting material is more expensive than the alternative route.

These are all the disadvantages of the old machine. However it's advantage is electricity saving.