1、deposit

a、订金;保证金

A ￡50 deposit is required when ordering, and the balance is due upon delivery.

订货时需要交50英镑的订金，货到后余款结清。

b、竞选保证金(参加议会或欧洲选举时提交，如获一定比例选票便可返还)

The Tory candidate lost his deposit.

这名托利党候选人连竞选保证金都搭进去了。

c、沉淀物;沉积物

underground deposits of gold and diamonds.

地下金矿和金刚石矿

d、放下;放置;丢下

Someone was seen depositing a packet.

有人看见一个人放下了件小包裹。

Fritz deposited a glass and two bottles of beer in front of Wolfe.

弗里茨把一个玻璃杯和两瓶啤酒放在沃尔夫面前。

2、erode

a、（使）侵蚀;(使)腐蚀;(使)风化

By 1980, Miami beach had all but totally eroded.

到1980年，迈阿密海滩已经完全风蚀了。

Once exposed, soil is quickly eroded by wind and rain.

一旦暴露在外，土壤很快就会被风雨侵蚀。

b、（权威、权利、信心等）逐渐丧失；削弱

His critics say his fumbling of the issue of reform has eroded his authority.

批评家们说他在改革问题上的蹩脚做法已经削弱了他的权威。

America's belief in its own God-ordained uniqueness started to erode.

美国人心中上帝赋予了他们独一无二的品质的信念开始逐渐丧失。

c、（使）贬值;（使）降价

Competition in the financial marketplace has eroded profits.

金融市场的竞争降低了利润。

The value of the dollar began to erode rapidly just around this time.

刚好在这个时候，美元开始迅速贬值。