例句：
This report is from our Science Unit.
The progress of science is unstoppable.
科学的进步是无法阻挡的。
He was put off science by bad teaching.
教学不好使他失去了对理科的兴趣。
I was always weak in the science subjects.
我总是学不好理科。
Forecasting floods is not an exact science.
预测洪水不是一门精密科学。
