1. 为...而担心：be wild with jay 欣喜 | be worried about 为...而担心 | be worse off 处境较坏,情况恶化

2. 担心：29.get on the plane 上飞机 | 30.be worried about...担心...... | 31.a strange smell 一种奇怪的味道

3. 为......担心：be well up in 精通,熟悉 | be wild with joy 欣喜 | be worried about 为......担心

4. 对......担心：17.be in danger 处于危险境地 | 18.be worried about 对......担心 | 19.date from 追溯