我们之间的通信只限于几封商业函件.Our correspondence is limited to a few commercial letters.将这函件放入文卷总档中.Put this letter in the main file.正式照会实质上是正式的个人函件.A Formal Note is essentially a formal personal letter....
人们期盼着更快的变化, 但不太可能.A swift change is longed for, but unlikely.热空气可使之在超过临界马赫数之前达到更快的速度。The hot air permitted higher speeds before the critical Mach number was exceeded.某些病毒的生长可以被生长更快的病毒所掩蔽.The growth of certain viruses is ...