2. Well, that, of course, is impossible. 不过,那当然是不可能的。
3. It is impossible for me to finish the task in a week. 对于我来说在一周内完成这个任务是不可能的。
英英解释
n.
1. something that cannot be done
2. not capable of occurring or being accomplished or dealt with
3. totally unlikely
4. used of persons or their behavior