Idioms describing efficacy

Bering Bai Yan: Calculation and prediction are very effective.

Only occasionally count: divination; Number: gas number; Only: only; Occasionally. Divination is sometimes very useful, just by accident. Metaphor just happened.

Panacea: spirit: efficacy. A magical drug that is very effective and can bring people back to life. Metaphor is an effective way to solve all the problems in fantasy.

Panacea: spirit: efficacy. A magical drug that is very effective and can bring people back to life. Metaphor is an effective way to solve all the problems in fantasy.

Repeated test: test: effective. Many experiments have proved that it is effective.

Magic bullet: wonderful: refers to special effects; Dan: granular Chinese medicine pills; A panacea: effective. A very effective panacea that can cure all diseases. Metaphor is a good way to solve all problems.

Words are like gods: predicting things is as effective as gods.