a discovery that changes understanding in a field
一个在某个领域改变理解的发现 (yí ge zài mǒu ge lǐngyù gǎibiàn lǐjiě de fāxiàn)
"The new vaccine was a groundbreaking discovery in medicine."
"新疫苗是医学领域的突破性发现。" (xīn yìmiáo shì yīxué lǐngyù de **groundbreaking discovery**.)
feeling very worried or tense because of problems
to search for information in a curious way
complete honesty without hiding or changing anything
to spend money freely or wastefully
there is no limit to what someone can achieve
to take a foolish risk that may bring bad luck
