If you describe something as illusory, you mean that although it seems true or possible, it is in fact false or impossible. 貌似真实的; 虚幻的; 虚假的
adjective [原级] 虚假的,幻觉的
"It's an illusory sense of being trapped," said Robinson. 罗宾逊说:“这是一种被困住的错觉。”