proprietary trading的用法和樣例：
例句
- HFT is high-volume trading used by banks' proprietary traders and a new breed of electronic trading outfits.
高頻交易是銀行自營交易員和新一代電子交易設備採用的大額交易。 - Securities companies shall use their own funds or funds raised in accordance with the law when operating proprietary business.
證券公司的自營業務必須使用自有資金和依法籌集的資金。
