1.threaten to 显露出……的迹象；可能
Tighter lending standards and new rules designed to protect consumers threaten to squeeze the flow of finance.
更严格的出借标准和旨在保护消费者的新规定可能会有碍资金流的通畅6M%*6JK*BJ513ay=02。

2.a fleet of 一系列
In October, Google announced it had developed a fleet of cars that use various sensors and maps to feel out the roadway.
10月，谷歌宣布已研发出一系列拥有多种探测器及地图的可自动感应道路的汽车x4fw.Jtt(dsIv7f。

3.go unanswered 置之不理
This affront to justice and decency cannot go unanswered.
这是对正义和尊严的践踏，不能置之不理FGG.#n*pgeI。

4.raise the possibility that 催生……的可能性；
These problems raise the possibility that the United States is not merely suffering through a normal, if severe, downturn.
这些问题催生了美国正在遭受的可能不仅仅是一场普通的经济严重衰退的可能性aj1M8G#~LbvFgv。