1、Now that the problem is at hand, we can tackle it right away.
2、Medicine is the treatment of illness and injuries by doctors and nurses.
3、Cross the bridge when you come to it
4、The reason is obvious
5、So，don’t worry about whether it’s easy or difficult to cross that bridge now.
6、To warn against the blindness to the probable shortcomings of computers.
7、dealing with computers to be reasonably doubtful about them
与计算机打交道时，要合理地怀疑它们 trouble麻烦 doubt疑虑
8、 Within fifteen years Britain and other nations should be well on with the building of huge industrial complexes for the recycling of waste.
9、The word rubbish could lose its meaning because everything which goes into the dumps would be made into something useful. Even the most dangerous and unpleasant wastes would provide energy if nothing else.