发音
嘴张大而不圆
舌头微离下齿
发音要长

单词
bar far car
are arm art
mark park bark
dark farm hard
safari bath spa
party remark heart
artist article regard
charge charm chart
target smart market
department partner argument

句子
The car goes far.
There is a safari park.
We are in the dark bar.
The art is full of charm.
Let’s go to the art department.

同音
[a:]
ta tar
bah bar
cast caste
aunt aren’t
passed past
draft draught
mark marque

辨音
[a:] [ə:]
far fir
farm firm
fast first
star stir
bath birth
card curd
heart hurt
hard heard