worrywart
🇬🇧/ˈwʌriwɔːt/ 🇺🇸/ˈwɜːriwɔːrt/ 23If you refer to someone as a worrywart, you mean that they worry too much or worry about things that they should not worry about. 杞人忧天的人
noun [专属名词]自寻烦恼的人；杞人忧天者
Some worrywarts have predicted that if the scientists actually do create a new universe, it might destroy the existing one.
一些杞人忧天的人预测说，假如科学家真的能够造出一个新宇宙，它也许会摧毁现存的宇宙。
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