be an old hand at的意思|示意
美 / /
英 / /
做一个老手
be an old hand at的网络常见释义
擅长 ... * as old as the hills 极古老地 * be an old hand at 擅长 * get old 上了年纪 ...
be an old hand at相关例句
At least from examples of the historical tradition, it may be concluded that hand washing is an old cultural heritage of human civilization.
至少从历史上的例子，可以得出结论，洗手是人类文明的一种传统文化。