There will be 300 representatives on hand in this conference.
这次会议将有300个代表出席。
At 20 years of age the will reigns; at 30 the wit; at 40 the judgement.
20岁我们按意愿做事;30岁我们凭智慧做事;40岁我们靠判断做事。
As a result, costs will be reduced by as much as 90%.
因此,成本将会降低90%之多。