each of the hard white bony structures rooted in the gums, used for biting and chewing
"the treaty had no teeth in it"
She smiled.., showing a mouthful of magnificent pearly teeth.
出自: A. N. Wilson
误 We use our tooth for biting and chewing.
正 We use our teeth for biting and chewing.
析 tooth的复数是 teeth,这里应该用复数形式。
误 My sister has two teethbrushes.
正 My sister has two toothbrushes.
析 tooth的复数是teeth,但由tooth构成的复合词在变成复数时,则只需将主体名词变成复数形式。
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海词词典,十七年品牌