英文成語Idiom of the day---give the green light

Idiom: give the green light (獲得許可)

Meaning: If you give something the green light, you give permission for it to be done, or allow it to happen.

For example:

• The government has given the green light to our tree-planting project, so we can go ahead and start organizing things.
• As soon as our CEO gives the new product the green light, we'll start planning production. 

Reference: Englishclub.com