【turn】
1. turn against 背叛，
例如：Why did you turn against him? 你为何背叛他？
1. turn against 背叛，
例如：Why did you turn against him? 你为何背叛他？
2. turn in 自首，
例如：You must turn yourself in. 你必须去自首！
例如：You must turn yourself in. 你必须去自首！
3. turn back 倒退，
例如：You can't turn back time. 你不能让时光倒流！
I wish I could turn back 5 years.
例如：You can't turn back time. 你不能让时光倒流！
I wish I could turn back 5 years.
