美音
hot [hɑːt]
heart[hɑːrt]
heart比hot发音长，从听觉感受上来说，就是因为R，其实英音是不发r的，英音heart的音标是[hɑːt]
下面是网上查到的资料，也就是说ɑːr并不是一个音，视下面的情况而不同
也就是说英音的heart和美音的hot是发一样的音的
In Received Pronunciation /ɑːr/ is pronounced [ɑː] unless it is followed by a vowel, i.e. the 'r' is normally silent unless it is followed by a vowel.
In General American the 'r' is always pronounced.
There are places in the United Kingdom where the 'r' is pronounced, and places in North America where it is not pronounced.
The remainder of this article is valid both for Received Pronunciation and General American. See
hot [hɑːt]
heart[hɑːrt]
heart比hot发音长，从听觉感受上来说，就是因为R，其实英音是不发r的，英音heart的音标是[hɑːt]
下面是网上查到的资料，也就是说ɑːr并不是一个音，视下面的情况而不同
也就是说英音的heart和美音的hot是发一样的音的
In Received Pronunciation /ɑːr/ is pronounced [ɑː] unless it is followed by a vowel, i.e. the 'r' is normally silent unless it is followed by a vowel.
In General American the 'r' is always pronounced.
There are places in the United Kingdom where the 'r' is pronounced, and places in North America where it is not pronounced.
The remainder of this article is valid both for Received Pronunciation and General American. See