基本解釋[經(jīng)濟學]免收稅款英漢例句雙語例句All parents shall perform assigned school volunteer work unless a fee is paid to waive this obligation. The parents are responsible to fill out the forms upon completion of school duty.除繳納過義務服務赦免費的家庭外，所有家長應主動為學校提供義務服務，并及時填寫自己的“家長完成義務服務記錄簿”。waive duty更多例句專業(yè)釋義經(jīng)濟學免收稅款