重点讲解：
1. care for 照料；照顾；护理；
They hired a nurse to care for her.
他们雇了个护士来照顾她Tc_&L_xv_%J*rp2。
2. or so …左右；…上下；
He did buy me those daffodils a week or so ago.
他确实在大约一个星期前给我买了那些水仙花7&Z[eTc~xZnx4.HLS。
3. settle on 选择；选定；
He helped me settle on which car to buy.
他帮助我决定买哪一辆车dA,1g-0,+DclC5Gj。
4. happen to do sth. 碰巧；凑巧；
She happened to be out when we called.
我们打电话时她刚巧不在家c-Z|FvL~Dd。