人体英语趣说之arm手臂

arm手臂 Every person has two arms：the right arm and the left arm. The right arm is usually stronger， so we call a good helper the right arm .We all know an arm is not very long. But when you keep someone at arm‘s length ，the distance is long enough . For that means you do not like that person and you try your best to avoid him or her. We should indeed keep the bad friends at arm’s length. 每个人都有两只手臂，左臂和右臂，而右臂通常较强壮，因此我们常以“right arm”来称得力的助手。我们都晓得，手臂是相当短的，不过当你和别人保持“一臂之距”，（keep somebody at arm's length）却不是很短的了。因为那意味着你不喜欢那个人，而且避免和他或她亲近。我们对那些损友确实是应该保持距离的。