Sporadic mutation
[医] 自然突变
🧩 词语组成解析
sporadic
[spə'rædɪk]
adj. 不定时发生的，时有时无的;零星的，分散的;哩哩啦啦;
🗣️ 情景例句
But Dad was so exhausted when he came home from work.
但爸爸工作回来时已经累得不得了了。
Gather ye rosebuds while ye may.
有花堪折直须折。
It was my first flight. I was nervous when the plane took off.
我第一次坐飞机，起飞时我有点紧张。