It will take a few years for the region to recover economically.
这个地区的经济恢复得花几年的时间。
We must have your LC at least one month before the time of shipment.
我们必须在船运前一个月收到你们的信用证。
On turning eagerly to the text, one learns that the lady was a typist who found the sound of office typewriters worried her more and more until eventually she had to go into a mental hospital.