As we know, English is w{#blank#}1{#/blank#} used around the world. But can all English speakers understand each other all the time? Of c{#blank#}2{#/blank#} not. {#blank#}3{#/blank#}（甚至）the same word can have many different meanings. Sometimes the meaning can change, depending on the country where it is {#blank#}4{#/blank#}（说）. For example, there are differences between British English and American English. Also, Australian English is a little different from British English. If you want to succeed in making y{#blank#}5{#/blank#} understood, you need to know some of these differences.