Intersterility
(之间)不育性(近亲群二个体之间不育)
🗣️ 情景例句
It only takes eight minutes by bicycle to the aerobics class.
骑自行车去上有氧运动课只需要八分钟。
Did you hear something?
你听到了什么？
Mr.Hart has trained his daughter for years.
哈特先生训练她的女儿已经多年了，