当我们处于困境时,我们不应该放弃.
We shouldn't when we are in trouble.
Doing exercise in a scientific way _______ (be) healthy for both our body and mind.
Huangguoshu Waterfall is _______ (wide) known to people from home and abroad.
People eat eggs on their birthday in some _______ (place) of China.
Reading makes _______ (we) wiser and more learned.
Don’t make the wetlands smaller. There is ________ (越来越少的空间) for wildlife.