Leave no stone unturned!

Don’t count your chickens before they hatch

The meaning is –Don’t assume you’ll get something or succeed before it actually happens.

Similar idioms –

• Don’t put the cart before the horse

• Don’t jump the gun

Examples

1. She’s already planning how to spend the prize money—don’t count your chickens before they hatch.

2. We haven’t signed the contract yet, so don’t count your chickens.

中文意思是 – 勿過早樂觀、事情未成定局就別太自信 / 勿过早乐观、事情未成定局就别太自信