发音
双唇向外突出成圆形
舌尖不触下齿, 舌尖微卷
发长音

单词
ball call fall
law raw saw
nor or more
salt talk walk
warm warn war
four pour court
afford short story
almost already always
bought thought brought

句子
Add more salt.
The lion roars.
Give me some water.
We have more to talk.
The ball falls on the floor.

同音
flaw floor
hall haul
moor more
pause paws
court caught
source sauce
bored board
clause claws

辨音
[ɒ:] [əʊ]
ball bowl
fork folk
torn tone
pork poke
dorm dome
doors doze
snore snow
porch poach
nought note

[ɒ:] [ɒ]
balks box
chalk chock
caught cot
fawned fond
gaud god
hawk hock
stalk stock