英语词汇“black stain”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	black stain
释义	black stain black stain (blak stān) Black or gray discoloration of teeth near the gingival margins; may be caused by chromogenic bacteria or by orally inhaling silver or manganese dust.
随便看	rld rlda rldb rldc rlde rldf rldh rldi rl (disambiguation) rldm rl_down rldp rldq rldr rldram rlds rldur rldv rldw rldwl rle rlea rlec rle compression rled

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