| 内容 | 下表中看到是 CTDN的主要含义，点击英文全称可以查看详细解释。| 英文缩写 | 英文全称 | 中文意思 |
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| CTDN | Capital Directions, Inc. | Capital Directions公司。 | | CTDN | Conselho TÉcnico-Desportivo Nacional (Brazilian Motorsports Council; Brazil) | Conselho TÉcnico-Desportivo Nacional (Brazilian Motorsports Council; Brazil) | | CTDN | California Transplant Donor Network | 加州移植捐赠者网络 | |