Intersterility
(之间)不育性(近亲群二个体之间不育)
🗣️ 情景例句
Except for the beard, he hasn't changed in fifty years.
除了有胡须， 他五十年来没有变。
She will certainly remain single.
她肯定会保持独身。
Our school is in the east of Beijing.
我们学校在北京的东部。