Difficulty - 简单的任务

not needing any effort

lacking difficulty and done without putting any efforts

to not need any hard work at all

very simple without involving any difficulty

not that complicated or hard to understand, achieve, or do

used for emphasizing how easy or fast something is done

to involve no difficulty

anything that is very easy to achieve or do

without needing to try much

a situation that is easy, pleasant, or comfortable

a state or situation that is harmonious or free from problems

to be able to pronounce or articulate a difficult word, phrase, or language correctly, especially for non-native speakers

to finish doing something as fast as one can