1. be bad at 不善于。如:
I’m bad at maths. 我數(shù)學(xué)學(xué)得很差。
He is bad at playing tennis. 他網(wǎng)球打得不好。
2. be bad for 對……不好。如:
Too much salt can be bad for you. 吃太多的鹽對你不好。
Smoking is bad for you (your health). 抽煙對你(你的身體)有害。
3. go from bad to worse 變得越來越糟,每況愈下。如:
His business is going from bad to worse. 他的生意每況愈下。
We’re hoping for an improvement but things have gone from bad to worse. 我們希望有所改善,但情況卻變得越來越糟。