我很好奇与我写That sa fire alarm sometimes时的细微差别。你为什么用what a fire alarm这个表达方式?
母语人士的回答
Rebecca
通常使用that's what表达来表征某些事物。在此视频的背景下, that's a fire alarm sometimes说that's a fire alarm sometimes有点不自然。 that's what表达方式what话我用来证明有目标的逻辑的结果。例子: Winter here is very cold. That's what winters in Canada are like. (这里的冬天真的很冷。加拿大的冬天是一样的。)例如: My dog is very high maintenance ; that's what dogs are like. (我的狗需要非常细致的照顾。狗就是这样。)