I am a hanger-on in science.

Also I tried to make a key from a horn, but instead spoiled the horn. Maybe I should have done something else. but it is too late mow. Haha, that is what I learned from this translation exercise.

BTW, 这句话和中国的“没那个金钢钻，别揽那个瓷器活” 有异工同曲之妙。