套的英文缩写

　　例句：

　　You can borrow my keys ─ I have a spare set.

　　你可以借用我的钥匙——我还有一套。

　　As it happens, I have a spare set of keys in my office.

　　碰巧我在办公室有一套备用钥匙。

　　On his retirement, colleagues presented him with a set of golf clubs.

　　在他退休之际，同事们赠给他一套高尔夫球杆。

　　There must be one set of laws for the whole of the country

　　整个国家必须要有一套统一的法律。