"化齋"可以翻譯為 **"beg for alms (as a Buddhist monk)"** 或 **"collect alms"**。

具體語境中的其他譯法：
1. **Literal meaning**（字面意義）:
- "To beg for food (as a monk)"
- "To receive alms (in a religious context)"

2. **Cultural context**（佛教文化背景）:
- "To go on an alms round"（佛教僧侶的化齋傳統）
- "To practice mendicancy"（指托缽行乞的修行方式）

例句：
- 僧人們每日清晨化齋。
*The monks go out to collect alms every morning.*

如果需要更簡潔的口語表達，也可以直接用 **"beg for food (as a monk)"**，但 **"alms"** 更貼近宗教內涵。