preferential duties的用法和樣例：
例句
用作名詞 (n.)
- The special preferential tariff policies applied to SEZs had been eliminated.
經(jīng)濟特區適用的特殊優(yōu)惠關(guān)稅政策已經(jīng)取消。 - Products will receive preferential tariff treatment if they qualify under the rules of the respective schemes.
如果產(chǎn)品符合有關(guān)規則的要求，該產(chǎn)品就可以享受優(yōu)惠關(guān)稅待遇。
