Yes, our market analysis tells us our prime user will be between 40 and 60.
好的,我們的市場分析告訴我們,我們產品主要的使用者年齡將在40至60歲。
Many people in industry and the Services, who have practical experience of noise,regard any investigation of this question as a waste of time;
在工業部門工作和在軍隊中服役的許多人對噪音有切身的體會,他們認為對這個問題進行調查是浪費時間,