floor   

（价格等）最低额

【例】Costs are the floor for the price that a company can ask for its products.

成本是公司对其产品所能要求的最低价格。

flow  

【1】流动

【例】Orders for this product have been flowing in from other markets.

这种产品的订单正在不断从其他市场涌进。

【2】流动

①【例】The Chinese economy has absorbed almost half of total foreign direct investment flows to developing countries in recent years.

近年来中国经济吸引的外商直接投资占流向发展中国家的直接投资总额的几近一半。

②经常用单数形式，前面可加the或a，但不用one。

【例】A favourable balance of payments means that there is a net money flow into the nation.

一国收支顺差是指资金净流入。

【3】一阵，一批

【例】We have no doubt that there will be a flow of orders if the initial order proves to be satisfactorily executed.

如果首次订单执行得令人满意，无疑还将会有大批订单。

fluctuate  

波动

【例】The price of these commodities fluctuate on a daily, even hourly basis.

这些商品的价格每日甚至每小时都会波动。