In those days, dentistry was basic. Extractions were carried out without anaesthetic.
那时牙科学刚起步，拔牙是在没有麻药的情况下进行的。
《柯林斯英汉双解大词典》
Figuring himself a franchising whiz, Katz got into gyms, executive recruiting, dentistry, hair salons and cosmetics.
自视为特许经营奇才的 Katz 进入健身房，主管招聘，牙科，美发沙龙和化妆品行业。
"Nature gave us lips to conceal our teeth," ran one popular Victorian maxim, alluding to the fact that before the birth of proper dentistry, mouths were often in a shocking state of hygiene.
