dull boy的用法和樣例：
例句
- All work and no pay makes Jack a dull boy.
只有工作無工資，傑在也得變蠢才。 - All work and no play make jack a dull boy; all play and no work make jack a mere boy.
只好用功不會玩，傑克變成笨小孩; 只好玩耍不用功，傑克變成可憐蟲。 - If you don't, you are a dull boy.
邋遢些，缺個心眼。 - All work and no play makes Jack a dull boy.
<諺>只工作不玩耍，聰明傑克也變傻。
