1.express concern 表达关注
Some teachers express concern about the trend.
部分教师对这种趋势表示担忧。

2.separate from 分离
He lives separate from his family.
他和家人分开住。

3.detach from 从...分离；挣脱
She detached herself from his embrace.
她挣脱了他的拥抱。