It is a simile
The sentence is comparing the arms to helicopters blades using *like
The closest answer to that is you'll be able to write more lively sentences. by increasing your vocabulary, you can mix and match different and more beautiful words to help make your writings more colorful. Knowing more words means you have more arsenal for your writing
A lot of people are health conscious nowadays and putting more chemicals to enchanted fruit can be dangerous for marketing purposes or health. Either way, we don’t need to put more chemicals inside of our body. We were brought up of natural fruit, we already use pesticides and adding ethylene to fruit will be putting more unnatural chemicals into our body.
