?在伸臂可及之处
at arm's length是什么意思_at a... ... James rarely speak to his wife, he keeps her at arm's length. 詹姆斯难得对妻子讲话，他对她若即若离。 at arm s length adv. 在伸臂可及(一臂之长)之处;近处 The girl is quite polite,but she keeps everyone at arm's length. 这个姑娘很有礼貌，不过她总和别人保持一定的距离。 ...