Underbred
a. 教养不良的, 没教养的, 劣种的
🗣️ 情景例句
Lacks vitality.
缺乏活力。
When was the last time he wrote you ?
他给你写最后一次是什么时候？
Only the Earth provides ideal conditions, and even here it has taken more than four billion years for plant and animal life to evolve.
只有地球提供理想的条件，而即使在这里，植物和动物的进化也用了40亿年的时间。