Quasistable isotope
[化] 准稳定同位素(指碘129、镎237等长寿命同位素)
🧩 词语组成解析
🗣️ 情景例句
She was a beauty in her day.
她年轻的时候是个美人儿。
Then,it's usually time to wake up my little brother.
然后，通常是我弄醒我的弟弟的时间。
He wore a small black hat, very wide trousers, a moustache and carried a stick that he swung in the air as he walked.
他头戴一顶小黑帽，身穿一条非常宽大的裤子，嘴上留着小胡子，手提着一根他边走边在空中挥舞的手杖。