1·The dentist may decide that the wisdom teeth need to be extracted.
牙医可能会认为智齿需要拔掉。
—— 《牛津词典》
2·Wisdom teeth are normally the last teeth to appear.
智齿通常是最后长出的牙齿，这通常是在青少年晚期或二十岁出头时长出。
3·If it were, we might have wings instead of wisdom teeth.
如果真的无可挑剔，那我们就应该长翅膀而不是智齿。
4·Japanese scientists said Friday they had derived stem cells from wisdom teeth, opening another way to study deadly diseases without the ethical controversy of using embryos.
日本科学家上周五宣布他们已从智齿中提取到干细胞，此举为致命疾病的研究开拓出一条新路，毋须再因使用胚胎而惹起道德争议。
5·Same with wisdom teeth.
对于智齿，也是同样的道理。