1、deposit

a、訂金;保證金

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

訂貨時需要交50英鎊的訂金，貨到后余款結清。

b、競選保證金(參加議會或歐洲選舉時提交，如獲一定比例選票便可返還)

The Tory candidate lost his deposit.

這名托利黨候選人連競選保證金都搭進去了。

c、沉淀物;沉積物

underground deposits of gold and diamonds.

地下金礦和金剛石礦

d、放下;放置;丟下

Someone was seen depositing a packet.

有人看見一個人放下了件小包裹。

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

弗里茨把一個玻璃杯和兩瓶啤酒放在沃爾夫面前。

2、erode

a、（使）侵蝕;(使)腐蝕;(使)風化

By 1980, Miami beach had all but totally eroded.

到1980年，邁阿密海灘已經完全風蝕了。

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

一旦暴露在外，土壤很快就會被風雨侵蝕。

b、（權威、權利、信心等）逐漸喪失；削弱

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

批評家們說他在改革問題上的蹩腳做法已經削弱了他的權威。

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

美國人心中上帝賦予了他們獨一無二的品質的信念開始逐漸喪失。

c、（使）貶值;（使）降價

Competition in the financial marketplace has eroded profits.

金融市場的競爭降低了利潤。

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

剛好在這個時候，美元開始迅速貶值。