Tribology is the study of wear and friction, and with tires, friction can be the difference between a safe arrival and a car accident.

摩擦学是对磨损和摩擦的研究， 对于轮胎，摩擦可能是安全到达和车祸之间的区别。

Jane had already written a few lines to her sister to announce their safe arrival in London; and when she wrote again, Elizabeth hoped it would be in her power to say something of the Bingleys.

吉英早已来了一封短简给伊丽莎白，信上说，她已经平安抵达伦敦；伊丽莎白希望她下次来信能够讲一些有关彬格莱家的事。