Yet, it is becoming increasingly difficult to maintain a positive outlook on our capacity to sustain healthy and happy populations in the coming century.
举一反三
- Many people are becoming increasingly interested in how healthy their food is.
- Happy, healthy, and vibrant people ______ positive energy to those around them.
- She found it difficult to ______ children’s interest. A: sustain B: obtain C: maintain D: entertain
- More and more people are becoming increasingly aware that climate change affects every __________ of our lives.
- So great is our passion for doing things for ourselves that we are becoming increasingly less dependent on specialized labor.