basidium的复数形式怎么拼写

The cultivated mushroom is an exception, with only two sterigmata on each basidium.成熟的蘑菇例外, 每个担子上仅有两个孢子梗....

n.（某些真菌的）担子...

basidium的音标：basidium的英式发音音标为：[bə'sɪdjəm]basidium的美式发音音标为：[bə'sɪdjəm]...