Slip-joint handpiece

slip [slip]

vi. 滑，滑脱;犯过失，出错;（时间）不知不觉地过去;（健康状况等）变差; vt. 使顺利滑动;摆脱;放松，松开; n. 跌倒，失足;纸条;失误，口误;事故; adj. 滑动的;可拆卸的;打有活结的; abbr. 串行线路接口协议(Serial Line Interface Protocol);

joint [dʒɔint]

adj. 共同的，联合的;共享的;两院的;连带的，共同的; n. [解]关节;接合处;下流场所;一块烤肉（英式英语）; vt. 结合，联合;为…装上接头，使…有接缝;

handpiece

[医] 机头

Can I use your car for a couple of hours?

我们能借你的车用几个小时吗？

I'm sorry to keep on coughing.

我不停地咳嗽，真是抱歉。

when they would be capable of providing information about traffic jams and suggesting alternative routes, when they would be used in hospitals to help doctors to diagnose illnesses, when they would relieve office workers and accountants of dull, repetitiv

计算机可以使办公室人员和会计免除那些枯燥、重复的劳动。