That's backbreaking work and may be too much for us.
这可是累人的工作, 我们可能负荷不了。
Yes. And another thing, would you mind not making long distance calls?
是的。还有一件事,请你别打长途电话了,好吗?
Up to now, historians have assumed that calendars came into being with the advent of agriculture, for then man was faced with a real need to understand something about the seasons.