n. something that cannot be done
a. not capable of occurring or being accomplished or dealt with
s. totally unlikely
s. used of persons or their behavior
a. 不可能的, 难以置信的, 令人无法忍受的
1. It seems impossible to finish this project on time.
看起来在规定时间内完成这个项目是不可能的。
2. She believes that nothing is impossible if you work hard.
她相信只要努力，没有什么是不可能的。
3. Climbing that mountain might seem impossible, but many people have done it.
攀登那座山可能看起来不可能，但许多人已经做到了。