quantum leap
柯林斯词典
1. →see quantum
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quantum leap (also quantum jump)
剑桥词典
- a great improvement or important development in something
飛躍，重大進展
The appointment of a female director is a quantum leap for women's equality . 任命一名女侷長從男女平等方麪來說是個大飛躍。 返回 quantum leap