【Joyce Lin】評論
The Food and DrugAdministration has been empowered to regulate all tobacco products since 2009.Six years later, there is still ___4___ on the books governing e-cigarettes. empower 授權，准許[O2][H] on the books 1.enrolled as a member 2.registered or recordedgoverning 僅用於名詞前 a. 形容詞 統治的﹐執政的﹐管理的governing principles 指導原則