各位先輩們您好...小想請教以下兩句
1. Dogs are able to hear more high-pitched sound than human beings
human後面為啥需加beings???
這beings又代表甚麼意思???
2.Milk went through a lot of hardships to get to where he is today
get to where he is today的to 算是介係詞嗎??
這裡的where是甚麼意思??
where he is today是甚麼意思??