To have comments on the the following translated versions.
1. I do not think the police’s theory will hold water
我认为警察的理论没有放水。
2. As soon as I entered the room, the old man began to rake me over the coals.
我一进屋，他就一耙子把我打倒在煤堆上。
3. All is not gold that glitters.
所有发光的都不是金子。