starfruit怎么变复数

复数形式是原形star fruit，例如：

1、We eat star fruit and moon cake during the mid-autumn festival.在中秋节，我们会吃月饼和杨桃。

2、Low-temperature Freezing Disaster and Anti-freezing Evaluation of Taiwan Soft-Branch Star Fruit.台湾软枝杨桃低温冻害分析及防冻效果评估。