1.a wave of 一批

例句:Prudential is among a wave of foreign companies exploring the possibility of listing in Shanghai
一批外资公司正在研究在沪上市的可能性，保诚是其中之一xp2qO6Av3ioqi2vV0。

2. rage on 激烈进行

例句:With nobody to provide emergency liquidity, the contagion threatened to rage on indefinitely.
由于无人提供应急流动性，危机有无限蔓延的危险+td@gNzk5[e^h_e。

3. defer to 听从

例句:Mr Bush has always said he would defer to his military commanders, but this time he did not take their advice.
布什常说，他会听从军事指挥官，但是这次不接受他们的建议5B@.Z5~gDL。

4. how best to 如何最好地

例句:The goal of this problem is to use a model to determine how best to control traffic flow in, around, and out of a circle.
本题的目的，是设计一个能有效地控制进出及使用交通枢纽的车流的模式XF1i2*K@tIfnl]VAO|R。