堆存费的英文：
retention charge

retention是什么意思：
n. 保留；滞留；记忆力；闭尿

He was proud of his retentiveness.
他很自豪自己记忆力强。

Visual material aids the retention of information.
直观材料有助于加强记忆。

He argues strongly for retention of NATO as a guarantee of peace.
他据理力争北大西洋公约组织作为一个和平保障的保留。

He is always worried about water retention.
他总是担心自己体内的水分潴留。

An abnormal distention of body tissues caused by retention of air.
气肿因空气滞留而引起的体组织的不正常的扩张

charge是什么意思：
n. 费用；电荷；掌管；控告；命令，指示；指责
v. （使）充电；使承担；指责；装载；索价；向前冲；控告；把...记入帐册

charge the enemy
向敌人冲去

mileage charges
按英里程计算的运费

What is this charge for?
这项费用是什么？

Is there an extra charge?
有额外的费用吗？

The nucleus is formed of neutrons with no charge and protons with a positive charge
核子是由不带电荷的中子和带正电荷的质子形成的。