Respuesta :
The best phrase to use to show that something is difficult to non-native English speakers is This is going to be a lot of work.
How should you speak to non-native speakers?
When speaking a language to people who don't speak it at a native level, it is best to be as clear as possible to avoid confusion. This means that idiomatic expressions should be avoided for the most part.
If you want to say that something will be difficult to a group of non-native English speakers, be clear enough by saying that it will be a lot of work.
Find out more on non-native speakers at https://brainly.com/question/1084292
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