A student who wears braces on his teeth is obviously under the care of an orthodontist.

要是学生戴着牙套说明他正在看正牙医生。

▷brace [breɪs]（n.）

【释义】A brace is a support that helps to steady or strengthen, and to brace is to prepare for something hard. So brace yourself for that impromptu meeting with your boss if you haven't been performing well.

something that is used to support or connect things, or to make something stronger

托架，支架

He was recently fitted with a brace for his bad back.他最近因背部受伤戴了一个支撑架。

▷orthodontist [.ɔː(r)θəʊ'dɒntɪst]（n.）

【释义】An orthodontist is a type of dentist who specializes in straightening crooked teeth. If you go see an orthodontist, you could walk out with a mouth full of braces!

a person whose job is to correct the position of the teeth

正牙医生

每日N词 | pediatrician-儿科医生,儿科专家 | 20170701

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