關稅: customs; duty; customs dutie ...的: 4次方是 The fourth power of 2 i ...負擔: bear; shoulder白人的负担: the white man's burden沉重的负担: a white elephant; heavy load; heavyload; incubus加重…的负担: burden 1减轻…的负担: reduce (lighten) the burden of (on); reduce the burden of解除……的负担: make free of梦想的负担: burden of dreams心脏的负担: cardiac cost关税的估定: valuation for customs purpose关税的课征: imposition of duties; imposition of duty关税的异议: customs protest可征关税的: customable没有关税的: tariffless应交关税的: dutiable应课关税的: dutiable应纳关税的: dutiable不合理的负担: unduly burdensome精神上的负担: have on one's mind关税负担者: incidence of duty付关税的价格: price at duty paid可征收关税的: customable无关税的地方: out of customs places; out-of-customs places有关税的论据: argument concerning tariffs