dinner,lunch,breakfast哪个是可数名词吗

dinner,lunch,breakfast哪个是可数名词吗 dinner,lunch,breakfast是可数名词吗,要是可数的那怎么变复数. breakfast,supper,lunch是可数名词还是不可数 breakfast是可数名词还是不可数名词? dinner breakfast lunch是什么分类 Breakfast,lunch and dinner are （ ）.填空 in 还是 at breakfast,lunch,dinner? 哪个是可数哪个是不可数名词 breakfast可数吗,是have a healthy breakfast吗 work job information 哪个是可数名词 what do you usually have for breakfast/lunch/dinner?why? why breakfast is important than lunch and dinner