慢速VOA090207
Wising Up About Wisdom Teeth(2/2)
正确率:86% (+18分) 错词:24个
But why do we have wisdom teeth if we often need to get their them removed. One serie ? 1 theory has to do with our diets. Scientists say the diet of prohit prehistoric humans probably required more chewing teeth. Life was probably a little rougher on the teeth that thick back then, too. So it was good to have extras. The removal of wisdom teeth is performed by all cighensoral surgeons. They say if removal is advised, the best time to do it . It's is before the teeth calls cause any problems or pain.
The American Association of Oil Oral and surgents Maxillofacial Surgeons says young adults are the best candidates for wisdom teeth removal. The groups group says older patients may be at greater risks risk for desease disease in the tisue tissue surrounding the molars.
Patients can have general anl anesthesia during the operationor . Or they might choose to have a local paincular painkiller and remained a weekremain awake. It may depend on the condition of the wisdom teeth and the number should to be removed. After surgery, there can be swellen swelling of the gums and face and some pain. Both can be treated with cold wraps and medicinemedication.
chance chan s or chang s
gum还有牙床的意思
theory知道什么意思但没听出来写成serie
prehistoric ['pri:his'tɔrik]史前的
oral surgeon口腔医生
surgeon外科医生
surgery n.外科学
disease拼错了 tissue也拼错了
anesthesia ['pri:his'tɔrik]麻醉
swelling 肿大
painkiller止痛药
medication n.药物治疗。医药治疗。
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