访问者对学生们流利的英语感到惊讶的英文

visitors were amazed at the students' conversational fluency in english

• 访问:    visit; call on; in ...
• 对:    answer; reply
• 学生:    student; pupil
• 流利:    fluent; smooth; lu ...
• 的:    4次方是 The fourth po ...
• 英语:    English
• 感到:    feel; enter; sense
• 惊讶:    surprised; amazed; ...