And then there are the unlucky folks who have recurrent aphthous stomatitis or RAS, which basically means that they have extra painful canker sores that keep reappearing.
有些人更可怜,他们会患上RAS,即反复出现的更为严重的口腔溃疡。
单词 | aphthous stomatitis |
释义 |
aphthous stomatitis
原声例句
Scishow 精选系列 And then there are the unlucky folks who have recurrent aphthous stomatitis or RAS, which basically means that they have extra painful canker sores that keep reappearing. 有些人更可怜,他们会患上RAS,即反复出现的更为严重的口腔溃疡。 |
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