oocyst
美['oʊəˌsɪst] 英['əʊəsɪst]
n. [动]卵囊
例句
用作名词(n.)- Wilmut said there were so many failures because it was difficult to ensure that the empty oocyst and the donor cell were at the same stage of the cell division cycle.威尔马特说之所以有这么多的试验失败，是因为很难保证空卵囊和供体细胞能处在细胞分裂周期的同一阶段。
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