Meaning: be the most attractive woman at party or similar event.

Example: She wore a dress made by the country’s most valued designer and could easily be picked up as the belle of the ball evening.

Meaning: go quickly and directly to somebody or something.

Example:
As soon as the employees heard about the news of scrapping of the bonus policy, they made a beeline for the boss’s office.

Meaning: too much heavy rain. Torrential rain.

Example Sentences:
1.- It’s raining cats and dogs I am worried about how my kids will reach home.
2.- It rains cats and dogs when the Monsoon comes in India.

Meaning: easy option. A comfortable or luxurious position.

Example Sentences:
1.- She found that taking care of old parents was not a bed of roses.
1.- Making money is not a bed of roses, so wake up early and go to work.