It wasn't so good as last time.
这次不如上次好。
It's time to put our plan into operation.
现在应该执行我们的计划了。
By the time you get there the meeting will be over.
等你到了那里的时候，会议就该结束了。
Take as much time as you like.
你想花多少时间就花多少时间。
It was a time of peak demand for the product.
那是对该产品需求最旺的时期。