I like to be on my own sometimes.
有时候我喜欢一个人待着。
It is sometimes possible to arrest or reverse the disease.
有时可以阻止病情发展或使病情彻底好转。
Teachers sometimes presuppose a fairly high level of knowledge by the students.
教师有时候假定学生的知识水平相当高。
Sometimes you feel better for a good weep.
有时候你痛痛快快哭上一场就会觉得好受些。
Sometimes I go by car.
有时我坐车去。