Existing preferential duties
[法] 现行优惠关税
🧩 词语组成解析
existing
[ig'zistiŋ]
adj. 目前的;现存的;
v. 存在( exist的现在分词);持续存在;
preferential
[ˌprefə'renʃəl]
adj. 优先的;优先选择的;特惠的;
n. 关税（duty的复数）
🗣️ 情景例句
and depends on places like a community center
主要靠社区中心这样的地方
A little knowledge is a dangerous thing.
浅学误人。
and the search for oil has done more to improve deep drilling than any other mining activity.
寻找石油比其他任何采矿业对改进深孔钻探作的贡献都要大。