arm/ɑːm/和am[æm]发音不相同:
/ɑː/，[æ]
The robber was armed with a rifle.
强盗有配备步枪。
The arms of this coat of mine don't fit.
我这件大衣的袖子不合适。
The company's research arm is very strong.
该公司研究部门实力雄厚。
There must be something wrong with my left arm， which is asleep.
我的左臂发麻，一定出什么问题了。I am lonely and I am hurting.
我很孤独，也很痛苦。
Luckily， I am a good swimmer.
幸好我是个游泳好手。
I must admit I am impressed.
我得承认我很佩服。
