Idiom: A frog at the bottom of a well refers to a person with shallow knowledge. The main point of this idiom is a frog in a well, but its adjective 'frog' is redundant and should be deleted. The meaning of self-evident is that you can understand without saying anything. The main part of this idiom is self-evident but its adverb is redundant and should be deleted. Punctuation: 1. Trembling means to be very afraid. This idiom should be used as a 'shudder' instead of a 'chill' instead. The phrase "flinch" meant that one was too scared to move forward when they saw it from afar. This idiom should be used to express one's reluctance rather than to sigh at the lack of talent. Bad sentence: His voice was high and infectious as he drank. In this sentence, the expression "side by side" is inaccurate. It should be changed to "side by side" or "side by side." he was a smart and farsighted man despite his young age. Although the expression in this sentence is not accurate, it should be changed to although or although he is young, but he is smart and farsighted. Multiple choice questions: Did he refer to Xiao Ming or Xiao Li in this sentence? 2 In this sentence, do you mean Xiao Ming is drinking and talking or Xiao Li is drinking and talking? Does his voice in this sentence mean that his voice is loud and infectious or that his voice is loud and infectious? 4. Does the young in this sentence mean that Xiao Ming is young or Xiao Li is young? Does this sentence mean that Xiao Ming has foresight or Xiao Li has foresight? Does this sentence mean that Xiao Ming is smarter than the average person or Xiao Li is smarter than the average person? The person with foresight in this sentence refers to Xiao Ming or Xiao Li? 8 In this sentence, drunk means that Xiao Ming is drunk or Xiao Li is drunk?