牙缝 (yá fèng) — the gap between teeth; interstice between teeth

定義

例文

• 他说话时牙缝里总是有菜叶。
  Tā shuō huà shí yá fèng lǐ zǒng shì yǒu cài yè.
  He always has vegetable leaves in the gaps between his teeth when he talks.
• 饭后用牙签清理牙缝是个好习惯。
  Fàn hòu yòng yá qiān qīng lǐ yá fèng shì gè hǎo xí guàn.
  It is a good habit to clean between your teeth with a toothpick after meals.
• 她一笑就露出整齐的牙齿，几乎没有牙缝。
  Tā yí xiào jiù lù chū zhěng qí de yá chǐ, jī hū méi yǒu yá fèng.
  When she smiles, she shows neat teeth with almost no gaps between them.