“浪兒”的翻譯可以根據具體語境和表達意圖選擇：

1. **Wanderer** - 最通用的譯法，強調自由漂泊、探索世界的意象。
*"He is a wanderer, always traveling to new places."*

2. **Roamer** - 突出無拘無束的漫游狀態。
*"The roamer crossed deserts and mountains alone."*

3. **Nomad** - 若涉及現代數字游民或流浪生活方式。
*"She lives as a digital nomad, working remotely from different countries."*

4. **Vagabond** - 帶有詩意或浪漫化的流浪者色彩。
*"The old vagabond shared stories of his journeys."*

5. **自由精神** - 若強調精神層面的不羈。
*"As a free spirit, she never settles in one city for long."*

**推薦選擇**：
- 文學意境 → **Vagabond**
- 現代流浪 → **Nomad**
- 中性通用 → **Wanderer**

請根據具體語境調整，例如：
- “他是個浪兒，走遍天涯” → *"He is a vagabond, wandering to the ends of the earth."*
- “都市浪兒” → *"Urban nomad"*