He spent his time devising incomprehensible mathematics puzzles.
他把时间花在设计难以破解的数学难题上。
《柯林斯英汉双解大词典》
2
Isaac Asimov evaded the whole notion of morality in devising his three laws of robotics.
艾萨克·阿西莫夫在设计他的机器人三定律时，避开了整个道德概念。
3
Researchers in Australia have been devising and testing a method of trickery to make lions think they are being watched by the painted eyes on cow butts.