Goods may be sent by surface mail or airmail.货物可通过平寄或空运发送。Affix the blue airmail label and leave the rest to us.贴上蓝色的空邮标签，其余的事情交给我们。Write "By Airmail" in the top left hand corner.在左上角写上“航空邮递”....
In each cycle of operation the particle picks up energy from the oscillating eletric field.粒子每运转一周都从振荡电场获取新的能量.The ferrography is a wear diagnosis technology based on the analysis of wear particle.笔者利用铁谱技术作为一种监测手段,通过磨粒分析...
At the highest executive levels earnings and performance aren't always correlated.在最高管理层，收入与工作表现并不总是相关的。The highest Order of Knighthood is the Order of the Garter.最高骑士勋位是嘉德勋位。The 77,000-acre estate contains five of ...
You don't have to worry about me. I'm a good swimmer.你不用担心我。我水性很好。Cross-currents can sweep the strongest swimmer helplessly away.即使最强壮的游泳者也会无助地被交叉水流冲走。She wants to become an Olympic swimmer.她想成为一名能够参加奥运会的游泳运动员。...