Intersterility
(之間)不育性(近親群二個體之間不育)
??? 情景例句
Who am I, you old rascal?
我是誰 ？你這個老玩童。
People usually stay out very late on New Year's Eve.
新年夜，人們通常都出去到很晚。
But a closer study of the evidence, supported by a deeper sense of the period,
但是，進一步仔細研究，對那個時代的深化了解，