arm
[英][ɑ:m][美][ɑ:rm]
n.臂; 武器; [复数]战事; 权力;
vi.准备（斗争），准备行动（against）;
vt.装备（防御工事）; 准备（攻击或迎击）; 配备; 防护;
第三人称单数：arms
复数：arms
现在进行时：arming
过去式：armed
过去分词：armed
和arm读音相同的单词harm tarm
arm和chair中一个字母替换添加或去掉,都可以改写成单词 chaim
后面加上字母y，组成新单词army，意思是：n.军队;陆上作战军队;陆军部队;(一国的)陆军;大批;大群。
例句：1.The army has been sent in to maintain order in the capital.
军队被调进首都维持治安。
2.The army has seized control of the country.
军队已经控制全国。
3.He's a major in the US army.
他是美国陆军少校。
arm前加上f,变成farm,农场
单词farm，意思是：n.农场;农舍;养殖场;饲养场。v.务农;种田;从事畜牧业。
例句：1.The criminals went to ground in a deserted old farm house. 罪犯们逃到一间废弃的破旧农舍中躲藏起来。
2.He had a bad accident two years ago and had to give up farming 他两年前遇到严重的车祸，不得不放弃务农。
3.Scientific farming is the key to the further development of agriculture. 科学种田是进一步发展农业的关键。