1. As good as gold. (孩子)规规矩矩的，很乖的

The children in her room are as good as gold. 这群孩子在她的房间里十分乖巧，老实。 2. A heart of gold. 道德高尚的人；金子般的心 He has a heart of gold, but he isn't very smart and ordinary in every way; nevertheless, he has many dreams. 他有一颗金子般的心，但他不是很聪明，什么方面都平平无奇；尽管如此，他也有自己的梦想。 3. Worth its weight in gold.非常有价值；值同等重量的金子 Sometimes an out-of-print book could be worth its weight in gold. 有时一本绝版的书是很贵重的。 小编一直都有a heart of gold呢！可惜心脏在身体的最深处，没人看得见，唉……不过古话说的好，是金子总是会发光的！说不定哪天小编的心脏就开始闪闪发光了！（嗯，有点冷……嘿嘿）