a pea pod的用法和样例：
- A dry, dehiscent fruit derived from a single carpel and usually opening along two lines of dehiscence, as a pea pod.
- Pea pods burst open when overripe.
- A pod, such as that of a pea or bean, that splits into two valves with the seeds attached to one edge of the valves.
- The tumour had shrunk to the size of a pea.
- A sparrow's heart is only about the size of a pea.
a pea pod的相关资料：