symbolic identifier

例句：

1. 1. The symbolic meaning of the flag is deeply rooted in our national history.
   这面旗帜的象征意义深深植根于我们的国家历史中。
2. 2.The symbolic gesture of the handshake is universally recognized as a sign of friendship.
   握手这个象征性的动作被普遍视为友谊的标志。
3. 3. The symbolic significance of the eagle represents freedom and strength.
   鹰的象征意义代表着自由和力量。