发音
口半开半闭
舌中部稍微抬起

单词
diet pilot quiet
flour hour sour
after letter winter
about around along
actor doctor visitor
album bottom freedom
children happen open
action fashion passion
another brother father
number member remember

句子
He is an actor.
I love children.
Fashion is my passion.
Children should be quiet.
The doctor asks her to keep diet.

同音
[ə]
hair heir
hour our
bare bear
pair pear
dear deer
hear here
their there
ware wear
flour flower
weather whether