Immigration has a much smaller effect on native wages than most people believe.
Chemistry is the bridge between the microscopic world and the reality we see every day.
"Books are the mirrors of the soul."
Small-scale farmers are the backbone of aquaculture—their knowledge is invaluable.
Prediction is very difficult, especially about the future.
船行至江河中央时遭遇不测,此时一个普通的“壶”便价值千金。