这部手机他已经买两年了.
我去过海南岛两次了. I Hainan Island twice.
那位医生只有在某些日子才在这所医院里.
The doctor is only at this hospital on .
他没有生气,反而看起来挺高兴.
being annoyed, he seemed quite pleased.
她并不是太担心,因为她知道他总是会随时施以援手的.
She didn't worry too much because she knew he would always for her.
这位老师对学生很有一套.
The teacher is very students.