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
(looking at his calendar) Oh, next Friday is May 4th.
（正在看着日历）哦，下周五是五月四号了。
Kinsman helps kinsman, but woe to him that hath nothing.
亲帮亲，邻帮邻，无亲无助你倒霉。
A bar of Chocolate.A bottle of milk.A pound of sugar.
一块巧克力、一瓶牛奶、一磅糖、