4周搞定2000+托福核心词
fissure = fiss(分裂) + ure(行为) = n.裂缝,裂隙
abrasion = ab(表加强) + ras(刮擦) + ion(表名词) = 磨损
abstraction = abs(离去) + tract(拉) + ion(表名词) = 被拉开→抽象
分裂
fission
常考释义
As Masurium, it was the first element discovered that occurs in nature only from spontaneous fission, and as Technetium, it was the first element discovered in a laboratory.
作为Masurium，它是首次从自然裂变中发生的自然元素，作为Technetium，它首次在实验室发现。
来源于：听力OFFICIAL8 L4n. 裂变；分裂；分体；分裂生殖法
Nuclear fission releases tremendous amounts of energy.
核裂变释放出巨大的能量.
As Masurium, it was the first element discovered that occurs in nature only from spontaneous fission, and as Technetium, it was the first element discovered in a laboratory.
作为Masurium，它是首次从自然裂变中发生的自然元素，作为Technetium，它首次在实验室发现。
来源于：听力OFFICIAL8 L6以上图片仅供学习交流使用，版权归原作者所有，如有侵权，请与我方联系
