spacious: implies great length and breadth and sometimes height: a mansion with a ~ front lawn.   如本例宽敞草坪，又如a spacious kitchen宽敞的厨房


commodious: stresses roominess and comfortable freedom from hampering constriction: a ~ and airy pent-house apartment.  roomy宽敞，空间大having a lot of space inside内部空间大，如a roomy car/flat/jacket宽敞的车/公寓/宽松的夹克    hamper妨碍阻碍


capacious: stresses the ability to hold, contain, or retain in exceptional quantity or to an exceptional degree: a ~ suitcase.     如capacious pockets/handbag/suitcase能装许多东西的口袋/手袋/手提箱            exceptional优秀卓越


ample: implies having a greater size, expanse, or amount than that deemed adequate and may suggest fullness or bulk or freedom from cramping restrictions: we have ~ means to buy the house.


spacious宽敞: 指很长宽高，commodious宽敞: 强调宽敞舒适不拘束，capacious容量大: 强调能容纳大量东西，ample充足: 指比足够(adequate足够)更大


记忆方法: 1）首字母SCCA想成是长处阿<==宽敞

         2）宽敞的意思是比一般大mean larger in extent or capacity than the average.